Re: Best spark plug?
yeah but the standard plugs don't offer as good of fuel mileage as the high perf. ones do. Plus heat doesn't bother the high end plugs. I learned Platinum plugs and racing fuel don't match well. My old Camaro use to eat them a set every 1500 miles or so. I put the new Iridium Plugs in and never another plug issue. Had the same problem in my Corvette due to 90's Vette's run hot by design at around 230* so i had issues with standard and platinum plugs getting out of heat range but the Iridium plugs fixed the problem. GM told me to use them in the Vette and they were right.
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1978 V20 Cuddy w/ 225 Johnson. And Several other boat's
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