Well i vote the 4.10's i doubt you'll regret it, and im sure about 99% of everyone here will agree. good luck
specially cuz you have an sn95 style, which is not the lightest of the stangs.
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90 lx coupe: Mac cold air fenderwell, accel supercoil,advncd ignition,3-core radiatr, FMS alum D/S, Black magic fan, 3.27grs, 3chbr flows.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 97.80
Best 60': 2.0047
next mods: subframes, mac h-pipe