Much of the improvement used in the "modern" centrifugal superchargers was stolen from a friend of mine who sent his new impeller design and new ball drive improvements to one of those companies for them to "look" at. They just copied it. He has done some more work that they don't have and he can do it all to the old McCullochs. The one in my son's Stude was a prototype. The problem is to get him to do it. He is the busiest man I know, and I know a few over achievers.
