Barry, depending on how much timing you are running you may be able to get away with it, but make sure you don’t have a lot timing in it. I have a mod moto that I melted down in 5 laps on ms98 but I had a lot of timing, I don’t run anything less than 110 Sunoco or c12 V.P. anymore not worth the risk and the price of the fuel is close to the same.