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Discussion Starter #1
I have an 04 efi f7. I had posted a thread in the performance tuning section about my sled bogging in midrange. found the problem, plugs are fouling. Last year everytthing worked great, I had the fuel pressure regulator, bulls eye's and a can all from D&D. This year I put the D&D y-pipe on and have been having problems. I was told that you don't have to adjust your fuel mapping with al the stuff i have on, so what is causeing my plugs to foul. please help eager to get back on my sled thanks
 
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