Believe this now......I went to school with a guy whose older brother had a Mustang II notch back. It was like a midnight blue with Cragar SST wheel on it. That guy put a Cleveland in that car. LOL At the time, Hedman made Headers and a mount kit for it........and the Pinto too of course since from 74 up they shared the same chassis. That car was not slow one bit. It was a real hairy ride.