added EMI's, mufflers and new plugs and I'm slower!!
04-21-2006, 07:27 PM
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Re: added EMI's, mufflers and new plugs and I'm slower!!
04-21-2006, 08:26 PM
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Re: added EMI's, mufflers and new plugs and I'm slower!!
Thanks all for your sugestions and help. I'm running right again. Went back out to the lake and it was running rough but at least warming up. Pulled all the NGK BR6FS plugs I had switched to and replaced with ac delco R43TS ( what was in it before) and the boat ran flawlessly. RPM back to 4900 but only running 59mph, but it was 20 degrees warmer and I had full tanks. Figured I better fill up before it hits $4 a gallon - Can't wait to see what it will cost on the water this summer - any guesses?
04-21-2006, 08:27 PM
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Re: added EMI's, mufflers and new plugs and I'm slower!!
Originally Posted by John B
