I'm going to the track tomorrow if the weather holds out, and i'm planning on running my race chip, i'm just concerned about having enough octane. I will have about 6 gallons of 110, with a gallon or two of 92 left over in the tank. Anyone ever run xylene with leaded race gas? Any problems? I'm just trying to cover all my bases before. Car has stock turbo, intercooler, etc... with 868 injectors, hooker exhaust, no cat. Will be running Red's race chip. Any help/advice would be appreciated.