How is your pump octane rated? Ours is research+motor/2 so it may be different. On the average stock-ish engine, there's no advantage to "race gas" unless using an oxygenated one like MR12 (what I use, almost exclusively, on our racers). Up to 11% power gain over pump swill, 5-6% over regular race fuel, made for moderate compression engines. Vile smelling, even in the can, and gums the carb if left in, but does add power. Unless the station you use sells a lot of premium, it may have been sitting in the tank a long time. For a performance bike, pick a good alcohol-free brand and stick to it, once jetted correctly. All blends are a tad different, even with the same octane, and jet up differently. Plug read with unleaded is tough.