Over on Speed Talk, back cuts are definitely not universally accepted as being something you want done to your heads.
As for the angles...... not only can the number of angles play a part in the flow....... there’s also the length of the various angles, and how that relates to where you’re looking to make changes to the flow curve.
Last edited by fast68plymouth; 11/05/1904:07 PM.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
