I beg to differ. Most slants have some initial advance reccommended. It wasn't umtil the later "emishion" years that the timing was retarded. I would suggest starting with about 5 degrees initial, and see how that works. If you get an improvement try adding a little (1-2 degrees) more initial. Keep doing that until the performance drops off, or you get ping under a heavy load. Then retard the timing a couple of degrees.