I want to pull the engine to have some head work done and while I have it out I want to change out some parts to maximize the horse power I can get from the engine. I am wanting to port the heads and change out the valve springs, adds some new lifters and rocker arms. I want to keep the block and heads but may change out the cam, intake, carb and pistons if this will help me. Just looking for some guidance from people with more experience on this subject than myself.