JWGchevy

Glad to be a new member, hopefully some of my questions can be answered. I currently drive an extended cab silverado that I have put a 6" suspension lift and a 3" body lift on. The only bad part is that this truck came stock with a 4.8L so u can only imagine how gutless it is. I am about to take the 6.0L plunge but I wanna do it rite before it is in the truck. I wanna set of headers and a cam. Any suggestions on brands or sizes????