Dick, Is laying down all the good Stuff, My Hooker Super Comp 4 into 1 cracked #4 at the flange twice, and it was heavily brazed at all the joints, later I went to a creative high temp silicone mount with tubing to the Bell Housing, and made sure the exhaust wasn't in torsion. I also took a VW bug Steering Damper and mounted it to the Bell housing and Cross member horizontally to restrain the engine torsion shock loads during autocross events. All of this with Stock rubber engine and trans mounts, and it may have extended the life of the header. Later, I had a specialist at my Tuner employment cut out the tight #4 welded seam and 3 inches of tubing, then welded (Tig) a new less abrupt bend to the #4 tube to the Collector. Since the Battery was relocated, All was good and Someday, a serious header will replace this.
He is Correct in saying the English have all the hard work done on making the 2.0 EAO scream with HP. My Drool Factor increased 10 fold when informed about this. I can dehydrate in no time just watching the EAO powered Escort mk 1&2 in hillclimb video.
If you are a video fan, I just uploaded my 72 at the PCCA video gallery and 3 views of my Moderate 2.0 EAO searching for a redline. That is with a standard Clutch/ flywheel. A year later I went back to the same hill with Half rotating weight and thought I was racing a big bore 4 Motorcycle engine, and was snapping the tires loose on apex to exit
It's all better when the high is on Inertia ,and acceleration