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Message: [QUOTE="Mr.Green, post: 107522, member: 22447"] since posting this question,I've lowered my needle on my 01'kdx220r,went to a 142main and modified my airbox.I run the gnarly torque(kg35) and my buddy has the rev(kg30)currently on a 99' kdx220r.We went riding last weekend at limestone mt.(about 4000ft)and opened them up on the flats neck to neck.It was only in 6th gear we saw any difference at all.He pulled away from me slowly, but not much difference.We swapped bikes and mine seemed to pull a little better on the lower end.He didn't do any mods to the jetting at all.:) [/QUOTE]