Not that much, maybe 6000rpm at 400+hp, but I've had bottom end oiling problems on B/RB mild builds before, particularly with oil starved rod bearings. I'd feel better if I could just get a bit more oil down there. I've already drilled the 2 thru 5 passages to the galley to 9/32's from the main saddles but got confused when I got to #1 and thought I'd ask.