My fd project

[sk8world]

Originally Posted by David Jerome

That picture you posted is basically the same is my standard exhaust port. FWIW I just had a customer make 399rwhp on 7lbs with a 72 or 74 mm turbo and that was with ignition break up, up top. His motor has Landers standard intake port template which like I said earlier is large compared to what most shops do. Hopefully he will post more numbers soon once he gets everything sorted out. Enough hijacking this thread for now

Are you looking at the scribed line or the little that was already cleaned off in the pic.? I have not scene too many shops/ port guys that go as deep or like it that way. Seems most now like the more square cut design. But like he said the flow bench says most! 399 at 7 psi is sick!