Ford built roughly 50 genuine Cobra Jet Mustangs in each limited run since reviving the nameplate in 2008 – and every one of them was designed to run a specific index number, not chase outright records. This car left that rulebook behind entirely, pulling 1,400 horsepower from just 305 cubic inches of supercharged Coyote. Read on for how the outlaw racing scene around cars like this got started, and why a small-block ended up making numbers Ford never advertised.