How can I describe the work Ron Hamp did on my 450 for motocross? Hold on 'cause you're going for a ride when you give it the gas!!!!! With porting the heads, new valves and springs as long as rider error stays out of the way no one can touch me on the hole shot. The work he did broadened the power bands, still has all the low end and even added to it. Currently Ron is working on coming out with different valve packages to extend the time between valve adjustments. Ron is able to cater to flat track, dirt track, super motard, and yes even motocross. Hopefully not many in motocross will contact Ron so that I can still get the hole shot and keep it out in front of everyone else. You can get more information on the magic Ron can do at http://www.ronhamp.com.