IIRC Cam 2 is leaded, which is not good for modern engines, so I wouldn't suggest running that. There is no reason you can't run unleaded race gas though. We had a bike come in on trade at work with a couple gallons of VP 110 in it that they let me take for free. I threw it in my car just for the hell of it, it was free gas, and it's the greatest smell in the world. There's no performance gain whatsoever unless you have big compression and need the race gas. Like 85SS said you could have it tuned for race gas and that might get you a few ponies, but it's not worth it for how much that fuel costs. The only downside to running it is you might find yourself in a daze at stop lights and such. It was pretty cold out when I was running it in my car, but I still couldn't bring myself to roll the windows up. People probably wondered why I was driving around by myself with the windows down in 40 degree weather with the biggest smile on my face. About 2-3 gallons made it smell for 6 full tanks too.