A friend had an old streetrace GTO from New York built in the 70s
that had a "turboclutch" trans. A TH 400 with cut of bellhousing
and replaced with a scatershield and a flywheel and clutch
was a pretty hot L88 engine in it the trans worked fine the
short time he drove it
The rumor says they have to clean the racetracks a lot less
since those type of trans disapeared
