Pretty much, most everyone will probably tell you to go 440, and I'm one of them.
Anyway, here's the next question, obviously you've stated what you want it to do, the question is, what kind of budget range might you be looking at? I'm not asking for #'s, but would you be looking to be able to get aluminum heads, or worked iron? Looking to build a stroker, or keep the factory bottom end spec's? Blown, or natural aspiration? NOX or no NOX? Let usknow one way or the other, and we will help you out where we can, take it easy.