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Discussion Starter #1
Does raising the compression 20-30psi ususally call for fatter jetting? I wouldnt think so but just wondering what peoples thoughts are.
 

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Discussion Starter #3
yeah obviously. I just bumped mine up and it seems to be running a touch leaner. I had to fatten er up some. Mabye its just colder than it thought.
 

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Its all about air/fuel ratio,more air =need more fuel,you may even need more fuel on the needle with a jump incompression like that
 
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