I've got an 1986 firebird with a 350 in it its cammed, lifters and a few other little odds and ends. Its currently got a holley 650 double pumper and its pushing way to much fuel, i've got it tunned down but its still to much fuel. What carburetor should i put on this thing, im fairly new to carbureted motors and im just looking for something somewhat cheap and reliable any help would be appreciated.