C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Ignition timing setting

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Old May 6, 2012 | 09:23 PM
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HAD2HAV2
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From: MOORESVILLE NC
Default Ignition timing setting

I have an 1988 L-98 that I had a cylinder head rebuilt/ intake ported along with new fuel injectors. Factory says 6 degrees for timing setting. What are the advantages and disadvantages for advancing the timing to 8 degrees. Seeems to idle better.
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Old May 6, 2012 | 10:48 PM
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If it does not spark knock, it wont hurt anything. Could help gas mileage a bit. 2* is not a big change but it changes timing under all conditions.
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