just out of curiosity why switch carbs? From everything I have read the Q-jet is a very good carb to begin with. It seems like "upgrading" the carb is the one of the first things people try to get more performance out of these cars, and I really dont think the carb is one of the choke points on a 305 (or any engine short of a big block). Why not spend the money on a headers and a good aftermarket exhaust? Is anyone really picking up any ponies with aftermarket carbs on an otherwise stock or mildly modified engine?