Yes, it would run fine on pump gas. Compression is not crazy high, the power is made with displacement, not compression and RPM, so the motor is super reliable. Its set up to two fuels now. MR12 for power and VP110 for practice. VP110 is basically pump gas. It has no power adding qualities. We use VP 110 because its super stable and comes from a known source. Pump gas is fine but the quality varies dramatically. When you have a motor with this much love on it, its a lot safer to use fuel from a know source, even if its $8.00 a gallon.