It takes this particular setup right about 40 PSI on leaded race gas to make 800HP at the tires without nitrous. The car has 2 stages of nitrous, a 75 shot and an 80 shot, that I usually spray together all at once with as much as 50 pounds of boost. Everything is controlled through an MS3 and put down through one of my stage 3 NV-T350 transaxles. It took a couple years, and I broke a lot of gears, to develop a line of transmissions that could stand up to the abuse.