The Boss 429's signature hood scoop, larger than any other Mustang, is not on this car. The Boss 429 was a largely unadorned with a comparatively clean design for performance Mustangs of the time.

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By 1969, the Ford Mustang could be anything from a dressy six-cylinder coupe to a high-powered Boss 429 fastback with a NASCAR-ready V-8 engine shoehorned under its scooped hood. It’s that ...