I have a rebuilt 1970 350. Has 1967 "camel hump" heads. Runs good until I get into the 4-barrel, which is a Edelbrock
#1405. 600CFM. When you floor it it tries to get to about 3000rpm's and that's it. It then bogs out and looses power. I put a new carb on, put a new fuel pump on, changed filters, re-adjusted valves, I have tried everything I can think of. Rebuilt the distributor, completely. Everything on the engine is new. The cam
is a EPWI cam int. .280, lift exh .295. Could the machine shop got the cam timing wrong?