When we first built our car we were one of if not the first to have two centrifugal superchargers on an engine at Bonneville. The looks we got every year were comical, people would come up and tell their friends; "see those big turbos"? Some would say that the engine compartment was a plumbers nightmare! The car worked very good with the old set up, but it was difficult to start, tune at low RPM's, and the set up was hard on the blowers. Now that we have our new "Build" finished, the car is more predictable. Easier to start, computer mapping, different overdrive, better inter-cooler and so on. The one thing that stays the same is when people see the engine they now say, look at the huge turbo!!? Yet we still have to explain that there is a belt attached to it and it's called a centrifugal supercharger made by Procharger.