1987 DeTomaso Pantera GT5-S that Shelby built for Iacocca, with a twin turbo 340, and it made 900 hp

It was on a 2020 show on Discovery, called Driven, and Galpin got on the show with this Pantera's refurb, with Beau Boeckmann, Dave Shuten and “Mad Mike” 

as always, skip the 1st minute

https://dodgeforum.com/articles/carroll-shelby-pantera-dodge-testing-restored/

There were two Pantera's were part of Mopar project, one of which was fitted with a 340 "A" series engine complete with aluminum cylinder heads and a twin turbo set up with assistance from Gale Banks Engineering. 

Induction is a draw through system via a Holley Carb through to the two turbo chargers to a water cooled intercooler mounted onto the manifold. The intercooler water is fan cooled in what was the a/c condenser. Pending a decision on the future of the project, which was eventually shelved, the car was put into storage whilst the mountain of corporate paperwork was being filed, in the mean time Jim Hensen had spotted and acquired the car, some parts were removed and the car was shipped to England just prior to the order for it to be scrapped. The car was reassembled in a workshop in East Anglia, then moved with it's owner to New Zealand

https://pantera.infopop.cc/topic/shelby-pantera