Dont worry, you have a heads and cam mustang, you shouldnt blow outta the powerband, just dont run those 50's tires, im the only idiot around my neighborhood that runs these crappy 3.27's, all the guys serious about racing run 4.10's, 4.30's, even 4.56, and at the track you will have slicks if your serious about going fast.
Btw, my friend has a 5spd and 4.10s in his 85, and he and my brother drove 3 hrs to the coast, 70mph all the way, on 26x10.5 et streets, and skinnies, no problems, didnt get the best of gas mileage, but it wasnt the worst....sheeeitot man just get em, and put the front tires in the air
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90 lx coupe: 5spd, energy susp trans mounts, fms hd clutch, Mac coldair fenderwell, Mac h-pipe, supercoil, ADS chip, 160 stat, aluminum D/S, Black magic fan, 3.27grs.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 98.17
Best 60': 1.9607
someday mods:4.10's, slicks.