My wagon does have much power at all anymore, I am not sure what is wrong with it. Its never had as much as I thought it should, even with the 3.55 gears but its worse now. It bogs down when you take off, and even with your foot on the floor it feels like you could run faster. I don't know if its a cam timing issue or what. It has had the head shaved a bit when i had the head rebuilt, that may effect it some. It may also be the point type ignition. I don't think it burns anywhere near as hot as the electronic ignition in my 76 and 79. It has always had a pretty violent shake when you rev it up with no load on it, mainly when cold. I don't understand that either. And it sort of makes a "farting" noise (for lack of a better term) when I let off the throttle to shift. Does this stuff sound like cam timing? Or what? I think there may be some carburetor issues (that is causing the bogging on takeoff) but there are other issues as well. The "farting" sound i thought was from the muffler since it was braking apart at the seams, but I just put a new exhaust on it and you can still hear it. Its also making small quite backfire sounds at idle. Just like if it had a burned valve or something, but the head doesn't have 5,000 miles on it since it was rebuilt. They replaced any valves they found that had any flaws at all in them.
I have a spare Duraspark II 2.3 distributor, the adaptor to connect it to an MSD 6 series ignition, some MSD plug wires, and an MSD blaster 2 coil, but dont have the MSD box yet.