on the stocker being faster...
i have avid that shows proof my wifes blaster was faster off the line than mine...
mods.. wifes.. stock exhaust, no air box lid, 240 main, boysen power reeds, 13/40 and 18s
mine.. fmf exhaust, no lid 270 main, 14/40 with 18s
and hers with my buddy riding gets a good jump on me cuz of the gearing.. but i pass it on the top end
it would be the rider.. or you machine could be out of tune.. and by that i mean dirty carb, weak reeds, drty air flilter, gummed up silencer ( slows down flow),
poorly jetted and tuned carb.... all that cann effect the out come..
try this.. you ride his and he rides yours.. race than.. if yours wins its the rider