Found race gas in my home town

Put on the new 295/50 R15 back tires. Smoked the hell out of them in the back lot. It looks real nice. It added almost 2" in width and about 1.3" in height. They still won't hook up, though, but I can't afford the race gas for a while. I just filled up for the third time in three days. $250 worth of gas in three days. I asked for a bulk discount and they laughed at me!