Well my recommandation goes out of your guide lines. I guy at work who used to Bracket race did this to his 90 5.0 LX, and it screamed, I MEAN SCREAMED.
And he said was relatively inexpensive, considering the speed. But he did most of the work and fabrication himself.
460 BABY. OH YEAH, 385 SERIES in a FOX BODY.
That should be enough cubes to satisfy anyone.
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64 1/2 "D" code Red Mustang Coupe. 289, C4, Mallory duel point. Ported & Polished 65 heads shaved .01 with 351 valves, 11:1 comp, 1.7:1 rockers, blue wolverine lumpy cam, modified 4100 Hipo 4 barrel. GT Apperance pkg. And to many others to list
2000 Perf Red Mustang GT. 5spd. BBK Underdrive pulleys, Flotech off-road H pipe. Hurst T-Handle, 40 series Flowmasters, Steeda Tri-Ax
64 1/2 red 6cyl coupe.