I talked with a head porter that used to work for Gibbs about 4 hours away from me that said he would take a look at the heads/intake, and see what he thought , sounded pretty good and wasn’t afraid to weld and epoxy to shape everything the way they needed to be, so this fall goin to tear it down and let him have a look see , not looking for a w-9 result but maybe there’s an extra 10-15 cfm hiding in there