my old stock cyln set up would take bolt on yfz,ltr and raptors in a drag... buddy had a ltr with programmer and exhaust and intake mod... i had mild port,34 pjs,shaved head,lightened fly wheel and f.a.s.t. clutch (with my fmf fatties on)and would beat him everytime by acouple bikes.... i d take my buddies rap 700 with barkers ,programmer and intake and beat my buddies 686 craycraft rap ..
my moneys always on a shee in strait line.... theere is some bad ass 4 strokes ,but u'll spend more money on ur for stroke than on a banshee to make it faster