09-15-2018, 04:53 PM
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CC Member
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Join Date: Jul 2006
Location: Redding,
CA
Cobra Make, Engine: FFR chassis and suspension, Mr. Bruce 289 FIA body
Posts: 1,066
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Not Ranked
Quote:
Originally Posted by Goopie 18
Bill, I overtightened the plugs on my Roush 427R and flattened one plug. I'm guessing that happened to you. I like the looks of your new plugs. What is the part #?
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NGK 4091 gapped to .032
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