I have a 1972 Chevelle with a 350. We pulled the engine, painted it, put a performer RPM cam, intake, and 600cfm carb on it. The cam is pretty radical, we had to take it to an engine shop to get it to pass inspection because the cam was too radical for us to get to pass emissions, so the guy took care of us and set up the carb to get everything running good and to pass.

The car is pretty quick, never took it to the track, but it doens't have much low end, if you are rolling at 30mph in 1st and punch it, the thing will fly, if your doing 20mph and punch it, it doesn't do much until it gets up there.

My question is would it be benefical to upgrade the 600cfm edelbrock carb to a holley 650 double pumper (or any other double pumper) to really take advantage of its love for top end and maybe give it some bottom end?

That's the problem with the RPM cam. It is pretty doggy below 3000 rpm. It really should have 11:1 compression, at least a 3000 rpm stall, and 4.10 gears. It is a BIG cam (308/318 adv dur). I don't think a different carb will help. You are overcammed.

oh well im just going to have to live with it than i guess, we went with the performer RPM package because it advertised nice numbers and flawless integration. headwork is out of the question, the cost is just too much to spend on this motor when we plan to put a crate engine in it in a few years (college first) which means it will be sitting anyway, thats why the carb (if it was worth it) would have been a fine upgrade because it would have only been a few hundred after i sold my current one.

any other recomendations? like i said, anything else has to be minimal and able to be done without pulling the engine since this is a daily driver but since the distances are so short gas milleage is not an issue.