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Old 08-01-2010, 10:44 PM   #1
dan468
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How do you determine what spark plug to use?

How do you determine what spark plug to use? I have a 454 and not sure what process I would use to determine what "heat range" I need to purchase for spark plugs.

Thanks!
Dan
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Old 08-01-2010, 11:35 PM   #2
dwcsr
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Re: How do you determine what spark plug to use?

Start with what the book calls for. Run it for a while and look at the plugs.

Then compare with this chart
http://forums.genvibe.com/zerofile/1...park_plugs.jpg
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