Mini Classifieds

Center armrest for 1979 pinto . Possible anyone who makes them of has one for sale
Date: 08/13/2017 02:01 pm
WTB Manual Transmission Clutch Pedal for '78
Date: 03/29/2019 07:20 am
1978 ford pinto carb
Date: 02/04/2018 06:09 pm
Crankshaft Pulley
Date: 10/01/2018 05:00 pm
pintos for sale
Date: 12/11/2018 04:29 pm
New front rotors and everything for '74-'80
Date: 08/02/2019 04:18 pm
Pinto brake booster needed
Date: 05/08/2021 09:00 am
Front and rear seats for a 1976 Pinto Sedan
Date: 05/18/2020 10:22 pm
1971 Pinto 5.0L

Date: 12/02/2017 12:23 am

Why the Ford Pinto didn’t suck

Why the Ford Pinto didn't suckThe Ford Pinto was born a low-rent, stumpy thing in Dearborn 40 years ago and grew to become one of the most infamous cars in history. The thing is that it didn't actually suck. Really.

Even after four decades, what's the first thing that comes to mind when most people think of the Ford Pinto? Ka-BLAM! The truth is the Pinto was more than that — and this is the story of how the exploding Pinto became a pre-apocalyptic narrative, how the myth was exposed, and why you should race one.

The Pinto was CEO Lee Iacocca's baby, a homegrown answer to the threat of compact-sized economy cars from Japan and Germany, the sales of which had grown significantly throughout the 1960s. Iacocca demanded the Pinto cost under $2,000, and weigh under 2,000 pounds. It was an all-hands-on-deck project, and Ford got it done in 25 months from concept to production.

Building its own small car meant Ford's buyers wouldn't have to hew to the Japanese government's size-tamping regulations; Ford would have the freedom to choose its own exterior dimensions and engine sizes based on market needs (as did Chevy with the Vega and AMC with the Gremlin). And people cold dug it.

When it was unveiled in late 1970 (ominously on September 11), US buyers noted the Pinto's pleasant shape — bringing to mind a certain tailless amphibian — and interior layout hinting at a hipster's sunken living room. Some call it one of the ugliest cars ever made, but like fans of Mischa Barton, Pinto lovers care not what others think. With its strong Kent OHV four (a distant cousin of the Lotus TwinCam), the Pinto could at least keep up with its peers, despite its drum brakes and as long as one looked past its Russian-roulette build quality.

But what of the elephant in the Pinto's room? Yes, the whole blowing-up-on-rear-end-impact thing. It all started a little more than a year after the Pinto's arrival.

 

Grimshaw v. Ford Motor Company

On May 28, 1972, Mrs. Lilly Gray and 13-year-old passenger Richard Grimshaw, set out from Anaheim, California toward Barstow in Gray's six-month-old Ford Pinto. Gray had been having trouble with the car since new, returning it to the dealer several times for stalling. After stopping in San Bernardino for gasoline, Gray got back on I-15 and accelerated to around 65 mph. Approaching traffic congestion, she moved from the left lane to the middle lane, where the car suddenly stalled and came to a stop. A 1962 Ford Galaxie, the driver unable to stop or swerve in time, rear-ended the Pinto. The Pinto's gas tank was driven forward, and punctured on the bolts of the differential housing.

As the rear wheel well sections separated from the floor pan, a full tank of fuel sprayed straight into the passenger compartment, which was engulfed in flames. Gray later died from congestive heart failure, a direct result of being nearly incinerated, while Grimshaw was burned severely and left permanently disfigured. Grimshaw and the Gray family sued Ford Motor Company (among others), and after a six-month jury trial, verdicts were returned against Ford Motor Company. Ford did not contest amount of compensatory damages awarded to Grimshaw and the Gray family, and a jury awarded the plaintiffs $125 million, which the judge in the case subsequently reduced to the low seven figures. Other crashes and other lawsuits followed.

Why the Ford Pinto didn't suck

Mother Jones and Pinto Madness

In 1977, Mark Dowie, business manager of Mother Jones magazine published an article on the Pinto's "exploding gas tanks." It's the same article in which we first heard the chilling phrase, "How much does Ford think your life is worth?" Dowie had spent days sorting through filing cabinets at the Department of Transportation, examining paperwork Ford had produced as part of a lobbying effort to defeat a federal rear-end collision standard. That's where Dowie uncovered an innocuous-looking memo entitled "Fatalities Associated with Crash-Induced Fuel Leakage and Fires."

The Car Talk blog describes why the memo proved so damning.

In it, Ford's director of auto safety estimated that equipping the Pinto with [an] $11 part would prevent 180 burn deaths, 180 serious burn injuries and 2,100 burned cars, for a total cost of $137 million. Paying out $200,000 per death, $67,000 per injury and $700 per vehicle would cost only $49.15 million.

The government would, in 1978, demand Ford recall the million or so Pintos on the road to deal with the potential for gas-tank punctures. That "smoking gun" memo would become a symbol for corporate callousness and indifference to human life, haunting Ford (and other automakers) for decades. But despite the memo's cold calculations, was Ford characterized fairly as the Kevorkian of automakers?

Perhaps not. In 1991, A Rutgers Law Journal report [PDF] showed the total number of Pinto fires, out of 2 million cars and 10 years of production, stalled at 27. It was no more than any other vehicle, averaged out, and certainly not the thousand or more suggested by Mother Jones.

Why the Ford Pinto didn't suck

The big rebuttal, and vindication?

But what of the so-called "smoking gun" memo Dowie had unearthed? Surely Ford, and Lee Iacocca himself, were part of a ruthless establishment who didn't care if its customers lived or died, right? Well, not really. Remember that the memo was a lobbying document whose audience was intended to be the NHTSA. The memo didn't refer to Pintos, or even Ford products, specifically, but American cars in general. It also considered rollovers not rear-end collisions. And that chilling assignment of value to a human life? Indeed, it was federal regulators who often considered that startling concept in their own deliberations. The value figure used in Ford's memo was the same one regulators had themselves set forth.

In fact, measured by occupant fatalities per million cars in use during 1975 and 1976, the Pinto's safety record compared favorably to other subcompacts like the AMC Gremlin, Chevy Vega, Toyota Corolla and VW Beetle.

And what of Mother Jones' Dowie? As the Car Talk blog points out, Dowie now calls the Pinto, "a fabulous vehicle that got great gas mileage," if not for that one flaw: The legendary "$11 part."

Why the Ford Pinto didn't suck

Pinto Racing Doesn't Suck

Back in 1974, Car and Driver magazine created a Pinto for racing, an exercise to prove brains and common sense were more important than an unlimited budget and superstar power. As Patrick Bedard wrote in the March, 1975 issue of Car and Driver, "It's a great car to drive, this Pinto," referring to the racer the magazine prepared for the Goodrich Radial Challenge, an IMSA-sanctioned road racing series for small sedans.

Why'd they pick a Pinto over, say, a BMW 2002 or AMC Gremlin? Current owner of the prepped Pinto, Fox Motorsports says it was a matter of comparing the car's frontal area, weight, piston displacement, handling, wheel width, and horsepower to other cars of the day that would meet the entry criteria. (Racers like Jerry Walsh had by then already been fielding Pintos in IMSA's "Baby Grand" class.)

Bedard, along with Ron Nash and company procured a 30,000-mile 1972 Pinto two-door to transform. In addition to safety, chassis and differential mods, the team traded a 200-pound IMSA weight penalty for the power gain of Ford's 2.3-liter engine, which Bedard said "tipped the scales" in the Pinto's favor. But according to Bedard, it sounds like the real advantage was in the turns, thanks to some add-ons from Mssrs. Koni and Bilstein.

"The Pinto's advantage was cornering ability," Bedard wrote. "I don't think there was another car in the B. F. Goodrich series that was quicker through the turns on a dry track. The steering is light and quick, and the suspension is direct and predictable in a way that street cars never can be. It never darts over bumps, the axle is perfectly controlled and the suspension doesn't bottom."

Need more proof of the Pinto's lack of suck? Check out the SCCA Washington, DC region's spec-Pinto series.

Members
Stats
  • Total Posts: 139,575
  • Total Topics: 16,267
  • Online today: 1,431
  • Online ever: 2,670 (Yesterday at 01:57:20 AM)
Users Online
  • Users: 0
  • Guests: 446
  • Total: 446
F&I...more

My Somewhat Begrudging Apology To Ford Pinto

ford-pinto.jpg

I never thought I’d offer an apology to the Ford Pinto, but I guess I owe it one.

I had a Pinto in the 1970s. Actually, my wife bought it a few months before we got married. The car became sort of a wedding dowry. So did the remaining 80% of the outstanding auto loan.

During a relatively brief ownership, the Pinto’s repair costs exceeded the original price of the car. It wasn’t a question of if it would fail, but when. And where. Sometimes, it simply wouldn’t start in the driveway. Other times, it would conk out at a busy intersection.

It ranks as the worst car I ever had. That was back when some auto makers made quality something like Job 100, certainly not Job 1.

Despite my bad Pinto experience, I suppose an apology is in order because of a recent blog I wrote. It centered on Toyota’s sudden-acceleration problems. But in discussing those, I invoked the memory of exploding Pintos, perpetuating an inaccuracy.

The widespread allegation was that, due to a design flaw, Pinto fuel tanks could readily blow up in rear-end collisions, setting the car and its occupants afire.

People started calling the Pinto “the barbecue that seats four.” And the lawsuits spread like wild fire.

Responding to my blog, a Ford (“I would very much prefer to keep my name out of print”) manager contacted me to set the record straight.

He says exploding Pintos were a myth that an investigation debunked nearly 20 years ago. He cites Gary Schwartz’ 1991 Rutgers Law Review paper that cut through the wild claims and examined what really happened.

Schwartz methodically determined the actual number of Pinto rear-end explosion deaths was not in the thousands, as commonly thought, but 27.

In 1975-76, the Pinto averaged 310 fatalities a year. But the similar-size Toyota Corolla averaged 313, the VW Beetle 374 and the Datsun 1200/210 came in at 405.

Yes, there were cases such as a Pinto exploding while parked on the shoulder of the road and hit from behind by a speeding pickup truck. But fiery rear-end collisions comprised only 0.6% of all fatalities back then, and the Pinto had a lower death rate in that category than the average compact or subcompact, Schwartz said after crunching the numbers. Nor was there anything about the Pinto’s rear-end design that made it particularly unsafe.

Not content to portray the Pinto as an incendiary device, ABC’s 20/20 decided to really heat things up in a 1978 broadcast containing “startling new developments.” ABC breathlessly reported that, not just Pintos, but fullsize Fords could blow up if hit from behind.

20/20 thereupon aired a video, shot by UCLA researchers, showing a Ford sedan getting rear-ended and bursting into flames. A couple of problems with that video:

One, it was shot 10 years earlier.

Two, the UCLA researchers had openly said in a published report that they intentionally rigged the vehicle with an explosive.

That’s because the test was to determine how a crash fire affected the car’s interior, not to show how easily Fords became fire balls. They said they had to use an accelerant because crash blazes on their own are so rare. They had tried to induce a vehicle fire in a crash without using an igniter, but failed.

ABC failed to mention any of that when correspondent Sylvia Chase reported on “Ford’s secret rear-end crash tests.”

We could forgive ABC for that botched reporting job. After all, it was 32 years ago. But a few weeks ago, ABC, in another one of its rigged auto exposes, showed video of a Toyota apparently accelerating on its own.

Turns out, the “runaway” vehicle had help from an associate professor. He built a gizmo with an on-off switch to provide acceleration on demand. Well, at least ABC didn’t show the Toyota slamming into a wall and bursting into flames.

In my blog, I also mentioned that Ford’s woes got worse in the 1970s with the supposed uncovering of an internal memo by a Ford attorney who allegedly calculated it would cost less to pay off wrongful-death suits than to redesign the Pinto.

It became known as the “Ford Pinto memo,” a smoking gun. But Schwartz looked into that, too. He reported the memo did not pertain to Pintos or any Ford products. Instead, it had to do with American vehicles in general.

It dealt with rollovers, not rear-end crashes. It did not address tort liability at all, let alone advocate it as a cheaper alternative to a redesign. It put a value to human life because federal regulators themselves did so.

The memo was meant for regulators’ eyes only. But it was off to the races after Mother Jones magazine got a hold of a copy and reported what wasn’t the case.

The exploding-Pinto myth lives on, largely because more Americans watch 20/20 than read the Rutgers Law Review. One wonders what people will recollect in 2040 about Toyota’s sudden accelerations, which more and more look like driver error and, in some cases, driver shams.

So I guess I owe the Pinto an apology. But it’s half-hearted, because my Pinto gave me much grief, even though, as the Ford manager notes, “it was a cheap car, built long ago and lots of things have changed, almost all for the better.”

Here goes: If I said anything that offended you, Pinto, I’m sorry. And thanks for not blowing up on me.

possible to mill heads?

Started by waldo786, June 08, 2014, 02:15:58 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

74 PintoWagon

Art
65 Falcon 2DR 200 IL6 with C4.

waldo786

You can say that again, I know how it goes!  I've already gotten new springs, valves, retainers and valve seals for the build, so I've already started.  I got an adjustable cam gear too - shout out to Esslinger racing (they were the only ones that seemed to have any of it in stock).  I have a ranger header, so now I'm considering a new 2" exhaust too, which will mean I'd need a new muffler and catalytic converter too.  Geesh, I gotta stop this!

65ShelbyClone

If you're not adverse to spending the money on a cam gear anyway, then I would get that first and play with the timing on the Ranger cam before buying a whole valve train setup. I say "whole" setup because lumpier cams often need better springs than stock, especially if the stock springs have some mileage on them.

Modifying cars is a slippery slope. One thing leads to another and another and another. ;)
'72 Runabout - 2.3T, T5, MegaSquirt-II, 8", 5-lugs, big brakes.
'68 Mustang - Built roller 302, Toploader, 9", etc.

waldo786

I agree about the price tag - way too much, that's why I got the ranger roller.  Could also get a comp cams flat tappet, although I really wanted to go roller: http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=PROD&Store_Code=CC&Product_Code=70-119-6&Category_Code=70-CAM  Again, more for low and mid range power, which is  where I will use it.  I just want it to run good and have a LITTLE pep to it. 

65ShelbyClone

A Ranger roller profile is not an upgrade over a stock slider cam. It usually moves power slightly downward compared to a stock turbo cam. The Crane 199541 is akin to the "RV cams" of years past. The 501 and 511 grinds are more of what I would be looking at, but $440 is way too much for an off-the-shelf cam IMO.
'72 Runabout - 2.3T, T5, MegaSquirt-II, 8", 5-lugs, big brakes.
'68 Mustang - Built roller 302, Toploader, 9", etc.

waldo786

Well, I do plan on paying a shop to dial it all in.  I did get the adjustable cam gear and I have the ranger roller, so I do have a little bigger cam.  Or one of these from Crane.  Not sure how the first one would compare to the ranger cam http://www.cranecams.com/188-189.pdf

jeremysdad

Whoa!!! If you haven't noticed, a timing belt tensioner usually isn't automatic. There should be no slack, because there should be no slippage. It's not an alternator...you can't get an extra 30k miles out of a stretched timing belt by tensioning it harder...that throws everything off, and the motor will run funny. lol :)

If mill more than 10 thou, then yes adjustable cam gear. If you do both, then you'll have to either be good at instructions, or pay someone that is. Yet another reason my head is coming off...again. First is why not bigger cam? lol

waldo786

Awesome, thank you good information.  Still deciding on milling the heads, but I feel like it may not be a bad idea to have that adjustability. 

amc49

Another correction, Racer Walsh states that .040" milled off a 2.3 head gets around one full point bump-up in compression when running the heart shaped chamber. The .060" number I gave is for the 2.0 EAO motor.

65ShelbyClone

Quote from: 65ShelbyClone on June 08, 2014, 10:17:08 PM
That means the cam timing retards by roughly 1° for every 0.039" taken off the head.

Correction, that's 1° of cam rotation, which is actually 2° of timing at the crank where all valvetrain and spark events are referenced.
'72 Runabout - 2.3T, T5, MegaSquirt-II, 8", 5-lugs, big brakes.
'68 Mustang - Built roller 302, Toploader, 9", etc.

Wittsend

As 74PW stated, Yes, you still need the tensioner.  The "adjustable" part about the cam sprocket is that it is loosened, then rotated a few degrees around the centerline of the camshaft and then re-tightened.  The cam and crank sprockets never move any distance closer or further away from each other.  But, because the belts/sprockets have teeth the rotary relationship can be altered causing the valves to open earlier or later than originally designed.

74 PintoWagon

Yes, the tensioner keeps the belt tight..
Art
65 Falcon 2DR 200 IL6 with C4.

waldo786

Interesting information so thank you!  Newbie question here - do you still need a tensioner if you are using an adjustable cam gear?

amc49

Actually, if there is no rubber damping of the full advance limit hit then it scatters spark, the advance weights hit solid metal to metal, bounce off in slight retard and then do it again and again. No springs on weights would make it horrible, they dampen it out some. Spark scatter, just like when chain transfers chordal chain motion jerkiness (no plate type metal timing chain on earth transfers dead accurate timing, they speed up and slow down on every link) to the cam and the cam itself winds up and the unwinds to make spark go everywhere. Motorcycles which can spin much higher often are rubber damped at full advance. My Honda fours were. And roller cams are made with no relief in between lobes to stiffen them to stop windup/unwind. All that stuff drives you crazy when running say a high rpm V-8 at 9000+ rpm. Lotta guys go to crank trigger to get away from all the unwonted monkey motion going on there. Then you use adjustable electronic advance curve. Hooray for MSD...............

At least some OEMs for a while did retard cams to lower NOx, the easiest thing to do quick until they could engineer better solutions. I used to drop ignition timing back to TDC or slightly ATDC to pass NOx tailpipe testing on my old AMC Concord. Then bring timing back up as soon as passed. Car was dead like that but the emissions dropped doing so. That and using highest vacuum idle and then kill that by 100-200 rpm lean and worked great on idle HC as well. Car would actually run cleaner in emissions than my MPFI Tempo did. Surprised the tester doing it, he wanted to know what I did to it.

Get to close measuring like lifts on all lobes and you can get an idea of who makes crap cams, some of those numbers vary a bit, no way are all lobes the same. Good part will be pretty close. And yes you even find the cam cards do not totally agree with what you find degreeing them in, they make slight changes in parts batches sometimes.

Wittsend

Just for the record I was only posing the inertia driven "variable" timing as an untested possibility. I'd think one could pull the vacuum advance, and the mechanical springs. That way the ignition advance would basically "lock" at full advance in short order.  Then you could see with a timing light what the cam is doing in relationship to a loose chain at RPM's. If (being a big IF) the timing advanced at higher RPM there could be some credence to the concept.  Anyone have a well worn V-8 they are willing to put at risk?  :-)

The concept of the aftermarket advance might have come from the concept that the manufactures retarded cams to deal with emissions. Both might be urban legends.  But, like you said the cam should be set up as designed. Only ever did it once. It was kind of fun seeing how close the cam (PAW Automotive knock off of the Edelbrock) was to specs.  As I recall lift was up .005 and duration 2 degrees longer than stated. I had no complaints. With a +/- 2 degree crank sprocket I opted for +1 rather than -1 (anticipating chain stretch). Spent more time on 318 swirl port heads than I should have, but the car has strong mid-range.

amc49

I do not agree with inertia pulling the cam back advanced at all. Inertia does not overcome the valve frictional forces and why engines with variable cam timing have assist springs to pull the cam timing back from retard conditions as vs. no assist when retarding to begin with. If the inertia advances then the spring is unnecessary. The spring helps overcome the valve frictional forces. End effect is what you see with a motor mounted on a spintron or strobe unit timed to watch sprockets, the timing moves around both advance AND retard, it does not stay constant one way or the other. Why high output drag engines go to belt drives to dampen that out. If you pay attention to enough engines at rev and with wear, it becomes obvious the chains retard and stay that way even at full revs. You lose too much bottom end that shows back up when you replace chain. The old Boss 302 my friend and I had did it regular as clockwork, we put 3-4 chains in it. Also showed up on the Honda CBF bikes I drove, they laid down and died on bottom end when chain slacks and that chain as heavy as a car one, it showed pretty quick. 1/4 mile times slowed, and new chain they got faster even though with new chain you could short shift to better use the bottom end, with stretched chain you had to buzz it more to even get near the quicker times. The engines were actually cammed at around 100-105 LCs, when the chains stretch to 108 you were p-ssing in the wind, the engines dropped lots of power. Still seemed to rev fine up high but dead down lower and mid. The engines were peculiar because the 'new' trick 4 valve head didn't breathe at high rpm because valve package was too small. They would always rev to 10000 rpm but the midrange was what you shot for with cam timing, if retarded they still revved high easily but simply blew up while not making as much power. How most ended up in the yards with rods sticking out of side of motor, everybody though 'bike motor, high rpm' but no, they did NOT like it.

And, there is no standard at all that says aftermarket cams are ground with 5 degrees built into them. Some may but not all. The numbers are to be taken as the numbers and set up with retard in mind yourself. Doing otherwise would beg the question, 5 degrees in relation to WHAT?, the last thing someone dialing a cam exactly in needs. The numbers on cam cards are what you shoot for and build in any retard space yourself. There is no way they can control what sprocket you use and it could be off so better to just give straight up numbers to avoid customer confusion. In fact, I'll pose the question myself, or, 5 degrees in relation to WHAT? You begin to see the problem...............

74 PintoWagon

Not sure about factory cams, but aftermarket cams have 5* built into them to compensate for chain stretch..
Art
65 Falcon 2DR 200 IL6 with C4.

Wittsend

Not to discount the importance of cam timing..., but has anyone ever pulled a timing cover on a typical OHV V-8?  The chain slack and gear wear has probably retarded the timing at least 5+ degrees.    And, so, what if you dial it in just right?  Where is the timing shortly there after?  And, going back to the loose chain. As the engine revs does the inertia in the chain take over and advance the cam.  Logically when you consider the momentum in the valve train (especially near valve float) the load on the chain actually decreases while its inertia increases.  Maybe we had variable valve timing and never knew it!  Although in theory it is working against an advantage preferring advance at low RPM and retard at high RPMs.

Years ago when I was into Datsun's they had a pin in the cam and three holes in the sprocket. I'd move the timing around and never noticed a difference one way or the other.  With a stock type cam it seems to matter little a degree - or two.  I know..., Pinto's have belts.  Just thinking, that's all.

65ShelbyClone

The Ranger roller doesn't need an adjustable sprocket.

Milling the head will retard the cam timing which moves the power curve higher in the rev range. Rule of thumb is 100-150rpm per degree which may be desirable with the Ranger rolling being a truck cam.

The amount of timing shift depends on the cam sprocket circumference and how much is milled off. I did a really dirty measurement of my cam sprocket (still behind a timing cover) at 4.5" diameter = 14.1" circ = 0.039" per degree. That means the cam timing retards by roughly 1° for every 0.039" taken off the head.
'72 Runabout - 2.3T, T5, MegaSquirt-II, 8", 5-lugs, big brakes.
'68 Mustang - Built roller 302, Toploader, 9", etc.

amc49

Most likely closer to .060" to get a full point.......................

waldo786

Hmm...now you've raised another question for me.  I have a ranger roller cam I am going to install in the car, how would that affect the cam timing and doe sit mean I need an adjustable cam gear?  I've seen others say good things about the adjustable cam gear on here.  I found this one in a quick search http://www.speedwaymotors.com/23-Ford-Adjustable-Cam-Timing-Sprocket,6570.html.  If I need one for the different cam, I might as well get the heads milled and get a little more compression out of it.

Wittsend

Yes, it is possible. And, yes, the tensioner will take up the slack. But, that will not compensate for the timing difference caused by the belt having to rotate further (essentially to "give" the slack taken up on the other side).

As 72 Pair mentioned you will need and adjustable can sprocket to compensate.  Sometimes there are offset keys available. But you need to buy the correct offset. And generally they aren't cheap. So, ideally the cam sprocket being adjustable is a better idea.  Besides if you are looking at increasing power with the head milling, you probably want to try adjusting the cam timing too (not just for factory spec correction).

I would ask around and see if the compression increase provides and value, or just causes a problem.

72pair

Sure. I've seen them milled all the way to the lower intake bolt holes. I think it would take probably a 0.030" mill to gain a point of compression. You really need an adjustable cam sprocket when milling the head to correct cam timing.
72 sedan 2.0, c-4 beater now hot 2.0, 4-speed
72 sedan 2.3, t-5, 8" running project
80 Bobcat hatchback 2.3, 4-spd, 97K

tbucketjack

I imagine its possible. It would depend how much, and possibly valve reliefs enlarged in the tops of the pistons.

waldo786

I was wondering if it is possible to mill the 2.3L heads at all to up compression a bit say 9 to 9.5.  I know the cam belt can be tensioned, so milling off just a tad should be feasible, correct?