Vitamin Posted January 17, 2009 Report Posted January 17, 2009 i have a 2001 banshee with lots of modifications, v force 3reeds, lrd pipes, k &n filter, no box cover, boost bottle, cool head, 30mm bigger carbs, etc...never blown up but has been bored to clean up cylinder walls, port n polished..... my question is that i run about 163psi in each cylinder and am wondering what kind/octane gas i should run in it, i have been pre mixing it with amsoil interceptor at 50/1 and have been going half racegas(110) and half 91 oct, seems to rip until i get to the top end where its holding back... suggestions? might just need bigger main jet for top end but dont want it to dog on low end... am i good on runnin that 50/50 mix or should i go full 110??? ~Justin Quote
vulvafan537240 Posted January 17, 2009 Report Posted January 17, 2009 50/50 mix of 110 and 91 octane is fine for 163psi. as far as going richer on the main jet, youll never know until you do a plug chop. im not familiar with jetting 30mm carbs but im sure somebody on here can put you in the ballpark. what size jets are you runnin? Quote
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