Thread: What Spark plug?
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07-10-2007 04:45 PM #1
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Oh, sorry bout that.
Flat top pistons, 91 octane here at sea level in so. Calif.
Is it advisable to run a hotter plug with aluminum heads?
Nomad MikeLast edited by Nomad Mike; 07-10-2007 at 05:44 PM.
OlChvyRacr
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07-11-2007 07:37 AM #2
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The last number on the Autolite plug part number it the heat range, so you need to run three or four un the heat range.. I would start out three first and if the motor skip little while driving the step up one number until it runs smooth. If you are running a 350 to got 10:1 compression.
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07-12-2007 03:49 AM #3
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Great, thanks Racecar.
Now maybe you can tell me what a good total timing starting point would be.
Nomad MikeOlChvyRacr
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07-12-2007 07:44 AM #4
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Start at 36 dreg total timming, now if it rattle little back the timming down little until it stop.
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