I can assure you that you won't. Timing is not like turbo boost where you keep on getting more and more power, the more you advance your timing. Mike --- Schmotty4Hire@aol.com wrote: > you might could get 20hp, but you'd be running some > REALLY high octane to > keep from blowing up. IF it worked on a linear > scale, you be somewhere around > 25* to get a 20hp increase.