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Old 08-09-2018, 11:52 AM   #11
Kurt in NJ
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Join Date: May 2010
Location: on the Littlefield
Posts: 6,140
Default Re: Another spark plug question

Try closing the GAV more

I used to play with different spark plugs, only putting the 3X plugs in for show---- then one time I forgot , it ran better, idled better, and got better fuel mileage, no problems idling over hours of parades, and just fine at 65, averaged over 35 years of use they are cheap
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