Thanks for setting me straight on the roller block thing. I'm really dumb when it comes to the inside of the engine, but I'm learning. My truck is a 93 lightning. It's got a paxton supercharger and mass air and long tube headers. The rest of the truck is stock. I know you where telling me about a 302 HO cam- I'm thinking about going that way, and i'm looking at a set of aluminum heads but i'm not sure which ones to go with. Any ideas. Thanks for the information--it really helped me.:thumbsup: