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Old Sat, February 14th, 2009, 04:53 PM
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Jackpine Jackpine is offline
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The 91+ octane tune DOES advance the timing, but since you are using 92 octane (where the heck do yu get this grade?) you cn add 0.5 degrees to the timing. I've seen people say they've increased shift firmness up to +10, but not particularly beyond that. You can try changing it as much as you want, but I'd do it in stages, not all at once.

- Jack
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