I am rebuilding my engine, I've pulled it out and everything and have been thinking while I have it out why dont I upgrade it a little bit. Im not wanting to spend too much on internal upgrades, I have just been thinking about a cam, my question is that if I put a new cam in what else do I absolutly have to upgrade? I know probably roller rockers, springs etc. I want to do it right the first time so what things can I keep stock and what things do I have to change?

 

can't remember if that is a flat tappet type lifter. if so they must be replaced.