Carroll Shelby is known for taking Mustangs and British cars and putting big engines in them. Shelby took an AC Ace body and put a small block Ford V8 into the car and called it the Shelby AC Cobra. Shelby also tunes Ford Mustangs, calling them the Shelby GT500 and Shelby GT350, depending on what performance package goes into the Shelby tuned Mustangs. Shelby was also responsible for the two most