You can shim the primary to get a slightly lower starting clutch ratio. I took a little weight out of my clutch rollers witch lets it rev a little more for a snappier throttle feel. search "king quad clutch mods" for more info
The shims are a must, gives you much better low end grunt. Re*route your gas tank vent, and rear dif vent to the pod, and add in*line filters (about $20*25) * also a must, unless you like water in your tank. You can also drill the roller weights in the clutch assembly to increase the lower end grunt, and not lose top end speed. Check out nyrocatv.com for more tech tips if you haven't already.