Hey guys, I have a polaris 500 H.O. engine in my off road buggy. Im at 900 ft elevation. I installed a uni, there is no box its just open. I also installed an HMF pipe/exhaust. the stock main is 155. What jet sizes should i get to get it right? i was thinking of getting some in the 160's range.
no air box, uni, and hmf exhaust jetting
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