I have a 2001 mxz 600. It has v force reeds and a clutch kit. It engauges at 4200 rpm and falls flat on its face at about 70 or so. Just looking for some good tips on gearing and jetting. Thanks in advance.[it still climbs after 70 but slowly)

first of all the v-force reeds will not make a big difference on a 600, i know the tassinari brothers personally and there reeds work best on 700cc and larger.sounds more like clutching (all other factors aside like clean valves) are you rvvving @8000 max? adjust your clickers if needed