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Old 02-22-2012, 09:57 AM   #15
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Join Date: Jun 2011
Location: Phx, Arid~zona
Posts: 11,107
You will get increased HP if the default timing causes detonation when using lower octane. Meaning, if it runs fine on low octane without backing off the timing, it will not increase the timing if you use higher octane. The detectors don't sense higher octane if it doesn't knock on lower octane.

2004 32' National Sea Breeze 1311 Class A on a F-53 Chassis, CHF, TST TPMS, 5Star Tune.
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