Does anyone know what I'm doing? My 70'Chevelle is a dog. It has a 396, 40 over, 750 Edlebrock Carb, 400 trans with 2500 stall engine and trans just recently rebuilt, the cam is a 280H Torquer .500 lift. Rear end is 12 bolt non posi 3.55 gears. Thinking of jumping up to a 305H compcam .575 lift. Is that the best thing to gain more power or should I do something else. Thanks for any help..