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go over on the corral.net.....the gt-40 humpers live over there and swear by such and rave over the results they get vs cost..plenty of gt-40 combos at 300 rwhp over there, but it takes the right combo and massaging of such to achieve such results
Lol!!! Yeah those guys worship the GT-40 head God! Everyday there's a new thread, "Just another 300rwhp GT-40 head setup." They also love the bumped compression of the GT-40"P" head. I love reading when people ask what the heads have done to them. Usually it's stock with mild port work.....okay.....! There's also a guy who swears by the B cam and GT-40 set-up.
Ive been hearing the AFR's arent as good as they seem. I know some guys making good power with AFR,but from what I have read Trickflow is the way to go. But its your money,spend how you want.