i recently got my quad and it has a +7 degree timing key. i no a lot of you are gonna say these are junk and im gonna do away with it within the next week or so. but i have rode it qute a bit and it runs really strong and im extremely happy with it. i wanna take it out this weekend proly for the last time of the year. my question is what gas should i run. ive beren running 94 octane and it seems to be fine but could mix in some 110 if you think i should. it has t5 pipes, pwk 35's bored .080 with stock stroke and port. i ride in central IN (not sure of elevation). also im jetted a little rich to be safe. i run repsol oil at 40:1. i measured my compression last night and im at 137 and 140psi. i had my head cut to make my squish .045". let me know what you guys think...i just dont wanna risk hurting anything if my octane isnt high enough.