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 ...
I know-the Four-Valve motors have, well, more valves; the Three-Valves have that cool cam phasing; and the Shelbys have displacement and boost! Heck, the new Coyote motors have more valves and cam ...