My impression as to the reason behind the OP’s post is that he’s wondering if one of the two manifolds he has on hand offers a performance advantage over the other. If he really didn’t care about the performance, he would simply put the sp2p back on without giving it another thought.
My story was an illustration as to how much of a detriment to “performance” the sp2p can be.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
