Spark Plugs for 500efi Stock vs After market
03-22-2002, 11:33 AM
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Spark Plugs for 500efi Stock vs After market
Need to probably replace these things, got 100 hours on them. They don't misfire and boat cranks right up. But its probably time for new plugs, so is the stock merc ones good or should I go with something else?
WILL
WILL
03-22-2002, 04:51 PM
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Will, I have read that there is no horse power gain available from a spark plug. But I have always liked the AC Delco Rapid Fire plugs. Had them in my HP500 carb last year and also in my truck. The part# for your motor RapidFire #1.
Eric
Eric
