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Join Date: Aug 2011
The streetbike motors have taller gearing so dont expect brutal boost out the hole unless you have say 12/50 t sprocket combos.The 500 would be the better bet,a 250 twin will be all top end.I think they were rated for 28hp or so,seen in mags a while back.
2004 kfx 700 pro circuit pipe,12 hole mod,epi almond spring
raptor 660 high comp piston cam yoshi titanium full system
banshee agressive port toomey t5s,5degrees advance timing
and 91 lt250r oil burner,ported and piped runs good