i built a shee for a buddy and put the single on it. the shee has 400 stroker crank, prodesign cool head with 21cc, t6s, wiseco prolites .20 over, open airbox with K&N. first put the 400 kit in, 3 hrs gas tank dry, would pull a wheelie in 2nd on pavemnt no prob. after the single (35mm or w/e the biggest is for the shee) 6 hrs, just going on res. and 4th gear wheelies. no bull shit. a def recommde also, SO, SO,SO much eaiser to mess with, one carb to adjusted instead of 2 that have to being very close to the same. hope this leads u (& anyone else) in the right direction