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Old 07-02-2014, 09:21 AM   #25
rodderbilly
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Join Date: Jun 2010
Location: italy
Posts: 38
Default Re: changing plugs every 100 miles!!

Quote:
Originally Posted by deuce_roadster View Post
Try .043 jets and .71 power valves if you are running 2 97s.
yes deuce i have just ordered ngk b4-l plugs that are a step hotter than the b6-l that i use on the flathead....now i'm ordering .043 - .041 jets and power valves....thanks
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