I have been looking on the net for a set of aftermarket cylinderheads to put on an engine i plan to build. I am wanting to build either a 302 or a 351. I am wanting a set of heads that would work for natural asperation or possible forced induction in the futore. (want a blower but don't have the money yet). RHS heads seam to have a good price but has anybody ever used them. also does anybody know of a company that sales a good set at a low price?