Exploring the 1971 Ford Mustang Boss 351: A Balanced Muscle Car with Performance, Comfort, and Collectible Appeal Ford Mustang Boss 351 The Boss Mustang, a high-performance variant of the iconic Ford Mustang, was produced in three distinct series between 1969 and 1971. While the 1969-1970 models, equipped with powerful 302 and 429 engines, are often considered…