Or have I misremembered it, and it was a 3-speed with a floor shift??
Charles Brandenburg was a street racer...somewhere, in his youth (not in Killeen, Texas, where I went to school). He told me he had the SECOND quickest car in town, a 427 Falcon. Chevy or Ford, I don't remember or if he told me. Same with the year of the Falcon). Number one in town was a Corvette-powered Chevy II (which motor, and years, I didn't find out...)

He had to have a manual transmission. Apparently, the only automaker who would build him a manual trans wagon in the late '70s was Chrysler (this was 1978...he couldn't get a 4-speed in a GM A-body wagon or a Ford Fox-body?)

Must've been "the wife's car". His other daily driver was a '70-2 C10 SWB fleetside with a camper shell on the bed.