Fast Lane Only on MSN

The Boss 429 existed only because of a rule most people never hear about

The Boss 429 Mustang has the aura of a moonshot project, a car that looks like a street machine but was really a legal ...
Fast Lane Only on MSN

To meet racing rules Ford created the 1969 Mustang Boss 429 and it stuck

The 1969 Mustang Boss 429 began life as a rule book workaround, a road car built so Ford could run a radical engine in NASCAR ...