if u plan on changing the intake manifold, i would go with the edelbrock victor x or something like that. the skunk2 is nic, but it has been proven that the Victor x flows better and creates more power. the stock fuel system is good for i believe around 400hp, dont quote me on that, but if ur going NA, then i wouldnt worry about it. i would maybe step up to a little larger injector like a 370 or so, just so u dont have to worry about over running the stockers.
i agree with the wisecos, comaored to others, probably if not deffinitely the best pistons around, and there here outta ohio, SUCCA