How would a stock 400ex do against a 92'RM125 with boyesen super bowl and a bills pipe?

I raced a banshee, he beat me from 1st thru 4th, i passed him in 5th and i had him on top end.

how do you think a 400ex would do against a 92 rm125? it was pretty fast lol.... they have a lot of potential but the bottom ends always need improvment, a 7th gear so the gears werent so tall would help.