"I could adjust the loading at all four corners," Montgomery tells us. "The chassis was way ahead of its time." Under the hood is a Boss 429 ... Mustang—the world's first late-model Gasser ...

Ford’s Boss 429-powered Mustang was a homologation special that ... The 815 hp from this Boss crate engine is fed into a Tremec six-speed manual transmission by way of a Centerforce twin-disc ...

Introduced in 1964 as a pony car, the Ford Mustang developed into ... Boss 302 remained in production through 1970, selling 8,641 units. The second Boss model was designed to homologate a new 429 ...