I refer to total timing as the initial crank time like 16 and whats in the dist like 20, no vac. If you took a stock 440-6 with 10.5 and ran 48 degrees you would lose ring lands in one pass. Check out the bearing manufactures websites for pics of bearings with too much timing, or detonation, yellowbullet forums also have some nice pics. I am not flaming you but PLEASE do not tell anyone to run 48 degrees on a BB mopar. You might not be building a drag car but all 440-6 bbls are run wide open at some point, so timing must be in the safe zone.