I just rebuilt a 304 for my cj7 with a edelbrock performer intake and 600 cfm edelbrock carb. I had starting problems but I just had too high a compression ratio for the battery answer bigger battery. But are you getting fuel or is it not turning over or wanting to die or what? Good luck
1978 Jeep CJ-7 T-400 Q-Trac New 304 edelbrock intake and 4 barrel carb, comp cam, .060 over, dogleg heads and it DOES have some power.Forget swapping in a 350 chevy. Always AMC.