Paxton option in 66? Yeah...right.....

If I remember correctly the McCullough (wasn't Paxton yet) supercharger was available only on the 57 Fords. They were built to compete against the Chev 283ci fuel injected engine. They also built a 270hp engine with 2 four barrels to compete against the 270hp Chev engine. There were at least 3 companies that used that supercharger in the late 50's early 60's. Ford, Studebaker and Kaiser. I guess you could add Packard if you consider the Packard Hawk. We took one off of a Kaiser Manhatten and adapted it to a friend's 55 chev which surprised a lot of street racers.