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Old 05-10-2000, 05:16 AM
JEFF
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I tried them in my chevy pick up idle began much rougher than before I thought couldn't be the new plugs..... it was. the +4's are expensive and I wasn't impressed with them I got some new plain old dual platinum plugs idle cleared up ran great. Just my experience maybe others had better luck seemed to me like alot of money for nothing.

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