Yep what bluebiker said, mixing a little in with 93 will generally clean up throttle response and the bike will run slightly cooler. When I built my last race bike (modern GSX-R750) I ran it in on the dyno and tested power and temp with 93, Sunoco 100 (most race tracks have pumps), and VP U4. BIke ran 10 degrees cooler and made 2 more hp with Sunoco, and the oxygnated VP was good for 6.5hp at the wheel. I put some leftover from a dead can in my lawnmower and I thought the blade was going to fly off, the thing was hitting like 1000rpm higher than it would on pump, haha! You'll go broke running that shit though.