nah dont go with supercharging to tubro charging, i post alot of links in another thread and it has been done before, theres a few on monkey garage, but theres never ending problems, stuff keep braking, failing, buring out, overheating, because all it does is make the motor work harder. your better off going with bigbore, new cam, bigbore exhaust and boring out the valves (sorry having a blank at the moment), new carby, all the basic stuff like that will give you a more reliable bike the will beable to run better or just as good as with a supercharger or tubro...
