What spark plugs for 1988 454 Merc Mag?
04-18-2012, 09:54 PM
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What spark plugs for 1988 454 Merc Mag?
I've searched the site and google, but can't find a definitive answer. What does Merc recommend? Anyone have better luck with a different plug? Any garbage plugs to stay away from? What is the recommended gap? Thanks,
Eric
Eric
