Fox platform flat out works for drag racing, there was a guy not long ago that wanted to cut the body off and put a barracuda body on the fox platform, along with mopar power just the get the advantage
I had two friends racing 10.5" tire heads up fox mustangs for awhile. One had a big block chevy and the other a 408 small block ford. The BBC motor was so much easier to check plugs on you would have sworn it was the original setup lol.