I have found yet another article on the history of the IMSA Ford Pinto racing from the "70's. This current owner deserves a Medal for restoring this one. It's not the most Famous Imsa Pinto, but it's close. Worthy of a read by all , the article is titled "Checkered Past" and includes the C&D Mazda RX2 road racer also.
Enjoy,
Pintosopher