10" high performance clutch?

Back in the late 70s a friend built a turbo 225 and, of course, blew the stock Auburn style clutch to smitherines. He found an outfit in Indiana called Hall Brake who used a Borg and Beck 1576 10" pressure plate and beefed it up. They also found a 23 spline 1" hub with an even number of springs and mounted ceramic paddles to it. We found a steel bell housing at the wrecking yard and modified it to work on the /6. The setup worked well for several years. Slightly more pedal pressure was required but nothing extreme. Is anyone familiar with someone who still modifies clutches in this manner?