What clutch mods do I need with my setup?

I put a 2.5" lift with 29.5" terminators and would like to know what modifications I need to keep from smoking my belt. I mainly ride in mud and creeks and could smell my belt getting a little hot a couple times while riding in high range and lower speeds. I am going to be adding an SLP exhaust soon also. I am familiar with clutch systems on sport quads but the belt, pulleys, weights and such on this thing are confusing to me. I (think) I need something that will help the belt engage tighter at lower speeds to keep it from slipping if that makes sense.

Thanks for the advice!
Spencer