Pump Gas

I can derail a thread with the best of them. Anyway, the point was to see what people consider to be pump gas to compare what I've heard/seen. I agree, generally across the board it is 87, 89, or 91-93, but it has always made me wonder if these high horsepower cars really run on common pump gasses.
Many cars can run on pump gas with plenty of boost and make big HP. Some of the guys I've known would run like 12-18 psi on pump gas and 24-30 psi on race fuel. Many are FI and with a flip of a controller they can go from street mode to race mode. Was a big thing 20 years ago with the Grand National crowd.