Its a 65it dont have a vent on the tank.....just a vented cap.....coil don't have a on the way out mode...they just good or they ain't and from what he has said it runs then it wont restart when its hot....that is valves adjusted too tight.......and if i'm wrong...SO!!!!:angry7:
P.S. all polydomes have adjustable rocker arms a manual will tell ya the lash for them
Sounds like the coil is on its way out. Could also be the fuel tank vent is plugged. Next time it stalls pop the air cleaner and look down the carb to see if you have fuel, if your getting fuel to the carb when it dies its definatly electrical.