Well I blew a head gasket last night so when I have the motor ripped apart I wanna throw in a cam. Here is some info on the car:
96 Z28
ATI D1SC 8PSI
& bolt ons
3600 Stall
I want some thing that will be aggresive and give me the most power. Im going to try to pick up a set of LT4 heads, but If nothing else I need something that will work with stock heads. What will I have to modify for the springs?

If you need more info on the car just ask. Thanks alot guys.