One of the most-iconic of all muscle cars, the Mustang Boss 429 was created by Ford to take on the big guns in high-speed NASCAR racing, but quite a few of them found their way onto the drag strip.

Arguably the most-famous of the quarter-mile racers was Boss 429 No. KK1213, the fourth prototype built by Kar Kraft for Ford, and since the earlier prototypes are no longer with us, it is the earliest Boss 429 known to…