Sox and Martin had begun using rosin on some Southern tracks, and then they used it up North, pulling the front wheels of their stock-bodied, unaltered wheelbase Chevys; the fans went wild.

One even went as far as to win the Super Stock class of the 1970 NHRA Summernationals with a Sox & Martin V8 under the ... an All-Original 1970 Plymouth Superbird Not Even a Hardcore Purist Would ...

Classics • Plymouth Superbird. World's Rarest 1970 Plymouth Superbird Sports ... It was purchased in 1970 and stripped off its original Hemi immediately in order to be fitted with a Sox & Martin ...

By 1971, NASCAR had changed the rules to limit horsepower to cars with big wings, dooming the Superbird. This one has 16,360 original miles, RM says, and was restored in 2002. It originally sold ...

Aero King: 1970 Plymouth Superbird Goes to Auction. Meep meep! Duncan Brady Writer Jun 24, 2019. See All 5 Photos.