Brian, we race MX and alot of the tracks in our area have concrete starting pads. While sitting on the line, our 250F radiator starts blowing water out the overflow, getting the concrete wet & screwing up our starts. What do you recommend? Overflow bottle?higher pressure radiator cap? Boyesen impeller?What do you guys do with Ferry's 426? Anyone else out there with some input? We are using "Water Wetter" presently to help but still have the problem.