Alright guys. I'm tryin to figure out which head would be optimal for the engine building. Im currently building a turbo b18 engine... i am in the midst of buying a built dart block and I am wondering what head choice would be the best. I know my options are a b16 head, b18c1 head, and a b18c3. From what i have read the b8c3 has a better valvetrain as well as it being "tuned and ported to perfection". Any info would be appreciated. Would it be cheaper to just buy a 18c1 head and p&p and upgrade the valvetrain(obviously cams too). Thanks Jason