In time-honored fashion, racers maintain a constant vigil on rules interpretation and loopholes. As Junior Johnson once commented, When theyre looking at the ass end, you work on the front end. And ...

There is no question that the DOHC 5.0L Coyote engine has taken Mustang performance to new levels, and the spotlight, but if you have a Three-Valve 4.6L, there are still a lot of performance options ...