thanks for that ALN... so i only need valvesprings and retianers if increasing my rev limit over 8000rpm...

does anyone else know if theres any disadvantage (besides economy) for going stage2 or 3?

also, will a K20 intake manifold fit on a k24? yes i know id have to modify the throttle body plate... but i like the larger plenum off the k20 and can upgrade it to a h2p one aswell