Mine has been to 135 mph and still pulling hard. That was before the pullies, mass air, and advanced timing. And only a short stretch of road. I would guess 150 mph capable on a non-scorching-hot day.
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'91 LX Hatch, 17 ROH ZR6's, lowered, 3.73's, offroad H pipe, SN Cobra cat-back, ASP pullies, 14° timing, C&L 76mm MAF, 170A 3G, B&M Ripper on a T5
Best ET: 14.593 @ 94.62 2.292 60'
1991 LX Hatch 5.0L