At the Black Rock Race every body had to buy 5 gallons of fuel from a dealer similar to the BigT folks. It was part of the entry fee. Can someone like that be called to sell fuel and solve the the fuel doping problem. They would be gauranteed a certain amount of fuel purchased, so it would be worth their while. Everyone will be on the same fuels so the testers would work. 5 gallons is a littlle much for a race day, but this wil solve the fuel problem.