with a lockup feature. So not only can you raise your stall speed to allow better launches and throttle response, but also lock up the converter in 2nd,3rd,and 4th gear. This effectively makes a direct connection between the crank and the trans, eliminating the parasitic loss through the converter (loss is around 7%). They "stack" a series of clutches where the existing lock up clutch is to allow it to hold under high horsepower applications. Their phone # is 901 466-0267. By the way, if you are drag racing a turbo car, an auto is the ONLY way to go. Good luck, Mark
