Also I believe the Weisco has FORGED pistons, whereas maybe not with the BC. Forged is good! Worth some extra cash.
I would imagine you don't NEED the freak, but if you're going as far as a big bore... Do the freak or some equivilant. I hear tell they are working on a budget freak. Or do a chopped air box like priveteer. If you want power enough to spend for the big bore, do it justice and let it live up to its full potential.
