Change timing for 93 performance

[Jackpine]

There ARE more things than just dropping the timing. Corey did a post on this several months back, and I can't think of a good search string to find it, but her advice was against it.

At a minimum, the shifting and fueling strategies are also modified to properly use the more knock-resistant fuel. As I recall, you can get some potentially damaging results using Level 3 with 87 octane fuel under high load conditions.

Please remember - high octane gas is not "better" gas, it's just different gas. And, these engines are really designed for 87 octane, not 91.

- Jack