Alright I got a 5.0 bored .030 with Speed Pro Hyper pistons with the 4 deep valve reliefs, GT40p heads milled .030 stock valves, Anderson N51 HR cam. I got the motor with the Hyper pistons already in their, just done the head, intake, cam swap. Now I have decided I want to either spray or turbo the car, so I need help on choosing a piston. I know I need forged pistons, but need to know how to calculate valve reliefs deep enough to clear the valves with the head and cam setup I already have.