06-28-2006, 07:04 PM
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CC Member
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Join Date: Jan 2002
Location: Northern California,
CA
Cobra Make, Engine: -Sold- Contemporary 427S/C # CCX-3152 1966 427 Med Rise Side Oiler, 8v 3.54:1 Salisbury IRS, Koni's.. (Now I'm riding Harleys)
Posts: 2,567
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Not Ranked
Depends on the ignition and compression ratio. If using a multiple spark discharge it will range from .030 for a 12:1 or higher to .040-.055" for a 10-11:1 motor to as high as .060 for a 9:1 motor. If you are using an old school points or petronix you might want .030". Follow your ignition manufacturers guidelines you will be fine.
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michael
A man that is young in years, may be old in hours, if he have lost no time. But that happeneth rarely. Generally, youth is like the first cogitations, not so wise as the second. For there is a youth in thoughts, as well as in ages... Sir Francis Bacon (1561-1626)
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plugs
Linear Mode
