i recently got a whitebros e-series slip-on, k+n jet kit+air filter, and a 13 tooth front sprocket on my mojave. i raced a blaster in a drag race and lost many times by a very small margin (1-2 bike lengths) i think it is because of the gearing. the field we raced in was about 800 feet. what gearing changes and/or other changes should I make to beat the blaster?

 

also i am running a dj134 main jet (i am 0-3000 feet), and the needle clip on the 3rd notch? any suggests about this as well?