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post #1 of (permalink) Old 01-22-2000, 10:23 PM
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Jetting for Pipes

I have an 89 Mach 1. When i bought it it came with an after market clutch and pipes. I believe they are DG pipes. The engine is a 583. The stock jet are suppose to be 260/290. I just looked at the carbs and the jets are 360/380. Does this sound normal for just adding pipes? I am getting about 8MPG and am considering changing the jets. My brother has a '94 STX with the same engine. His sled has 340/350 and i assume they are stock. I would appreciate any comments or suggestions.



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post #2 of (permalink) Old 01-22-2000, 11:59 PM
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Re: Jetting for Pipes

First, ditch the DG pipes, try to find the original single pipe and can and put the stock main jets in(read your plug !!). I had the same sled a few year ago and bought a set of DG pipes(BIG MISTAKE), made less power with them then without them, believe me but if you don't got to (tech forum) and ask about DG pipes !! - Speeddoo

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