Can't blame him for trying. That's how it starts. Get an idea, make it work, and record the benefits. I don't think other vendors used the tvs as it rare and expensive. Instead they picked the what was avail on production cars and improved it on via porting or intercooling. The whipple , and m112 , seem too big for these motors. That seemed to be the end , then it went to turbos. No one really wanted to drop $$ going backwards Let's see what it does , I'm curious to see as well.