Who developed this setup, because my current project which was bought new from Mac's Chevrolet, Crete Nebraska, ran with this setup. When I took deleivery of this car it came with a clutch type turbo 400, with a plastic B&M shifter console with a 70's ratchet shifter (w/ a spare). I it also came with a converter T400 w/brake, muncie and several miscellaneous engines of the 427, L88, 454, and LS6 range. The owner of Mac's, Al MacNamera remembers it as being raced with a all aluminum 427 that grenaded the stock muncie setup and took the back haif of the block with it (and from the look of the firewall almost the drivers feet).
See a previous thread
Super Stock vintage racer
I never asked Al Mac who prepped the car for them to go racing. If you notice the car's paint scheme it's close to being a D. Harrell knockoff.