Just curious if anyone has swapped their clutch to one off of a snowmobile?  I see that one is available from DRAGONFIRE but I don't know that much about this type of setup.  Is there a cvt from a snowmobile that may work fairly easily or am I better off with say a KMS sheave? 

I'm just looking to get more top end MPH (possibly keep up with RZR) without sacrificing low or mid range power.  I'm not interested in turbo, supercharger, NOS.... ETC....

Thanks

Dusty