i have a 77 maxi, no kit, 14mm stock carb, the jet it came with, still got the airbox on it, and recently added a leovince pipe. with the new pipe it makes a little more power but most of it is near the top end. if im sitting at a dead stop, it takes off really slow. it winds out around thirty and im happy with that, i just want a little (i just don't want to pedal) more power from dead stops. jet numbers? airbox ideas? the intake manifold is getting modifyed soon, i plan to smooth out the little ridge created by the carb sliding over it. i dont wanna kit it or nothing, not trying to race this bike. it's just my retro cruiser.