Quote: I have never been a big fan of the SD manifold myself. But I know Dwayne and other have coaxed some good number sout of them, I just never have been able to. I would be looking there first and foremost. Assuming of course the cam is where it needs to be and is happy where it is.
Probably need to port that SD intake. Or try an RPM Performer or M1 which should still fit under yer hood.
