This Mustang Boss 429 Was Built For Racing Jerry Heasleyâ s, recent YouTube video captures the incredible moment of this jaw-dropping discovery of a classic 1969 Ford Mustang Boss 429.

Is this the rarest Boss? An all-aluminum Can-Am 429ci. Tasca Ford owned the street with this car. Bring on Hemis and SS 396 Camaros. As one of six pre-production 1969 Ford Mustang Boss 429s ...