We are talking about VQ motors that are running 6's, so I would assume that you would produce a mustang that is equipped with a properly built cobra motor running 6's, not a some crazy off the wall built motor that was not in the car to begin with.
...took a little research. that Mustang is powered by a stroked out 351 Ford small block and twin 88mm precision turbos.
regulations for the super street shootout are that car cannot weigh less than 2800lbs and must have working tailights/headlights and mufflers. stock suspension or aftermarket bolt-on. no alcohol or nitro. gasoline only.