i cant decide what carb to get for my street truck. its got a 350,mild cam, performer intake. im thinking either a 600 edelbrock or 600 holley. i personally like the design of the edelbrock better. also considering a 650 double pumper. would this carb give me any more power? my buddy had one on his stock 350 and that thing hauled ass. what about mechanical vs. vacuum secondaries? im not worried about ecomony at all, i what max power.