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Old 02-11-2008, 05:51 AM   #2 (permalink)
DAN
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you know they once said washers mess up plugs heat rating nascarr does this but they do a lot of work with how hot ot cold their plugs are. i think but thats only what i think, it matters with high reving, very high c.r race motors. but i just don't know about street use.
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