Thread: Spark Plug Manufacturer and Gap
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Old 04-30-2007, 01:13 PM
Philip Messer Philip Messer is offline
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Join Date: Jul 2006
Location: Chandler, AZ
Cobra Make, Engine: Backdraft #101, 392 Ford Motor
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Ron,

Interesting that you exclusively use Autolite plugs. Back in the 60's and 70's, Autolite was the plug of choice for 396 and 427 Chevy engines in my race world. The higher the performance, the cooler the plug. I would run cooler and cooler plugs until they started loading up and then I would step up a heat notch. Not real scientific, but effective!

Phil
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