Quote:
Originally Posted by imported_RoadRunna
Quick Q.
Say you had 2 sets of heads E7 and gt40p, or any other gt40 head that's not aluminum.
What would be the best head to port? and which one would give you more power?
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The old gt 40 heads will flow more air than the e-7's with a 1.840 valve. I've had success going to a 1.940 valve but a lot of material needs to com out