I have a 52 wayfarer. You may remember previous post where I kept losing fuel pressure. I tried new manual pump,two different elec. pumps,manual and elec. together, with and w/o regulators. Nothing fixed declining fuel pressure. Initially car would run for 15 or 18 min. and pressure would drop from 5 or 6 lbs to zero and quit. After a couple of attemps at fixing, when it started dropping I would get p/o'd and shut it off so I didn't have to reprime carbs. Then I saw a post on HAMB about a guy having similar problem. H fixed by repalcing liquid filled guage with dry. I bought a cheap Mr. Gasket dry guage and now the pressure holds at 3.5 all the time. Something I did along the way fixed the dropping pressure problem, but I don't know what.
Well, now pressure is fine but car starts running really rough after about 1/2 hour. Runs excellent until this point, then starts to miss and sputter. Somewhere, either here or on HAMB I read something about coil getting hot and causing rough run. I replaced coil, and just got back from and hour drive and ran perfect.
Thought I would pass these 2 pieces of info. along, as they were relatively cheap and probably not all that obvious.
As info., I have 230 c.i. with Langdon hei and dual carter/webers. All the rest is stock.
Hope this helps somebody.
Bob