i got the airsal kit, 15.15. stock exhaust and the 15 mm intake and i broke it in with a 72 jet and running a mineral mix at 32:1. after the first tank i went down to the 70 jet and half way through i went to the 68. ( i found that the cap with no filter worked just right) it's finally broke in so next tankof fuel will be 40:1 of synthetic and high grade. I went so fast about an hour ago the bulbs in the speedo blew (they got real bright, then pop!) hahaha. and the speedo went also after being pegged at 35 for too long.