Umm... with my 3.slow 5spd... i've hit 105mph downhill with 30's and with 33's.. i've hit 110mph with my 3.4 auto (hit the speed limiter, would keep going)
i dont suggest going over 80mph in these trucks, but they are super smooth at any speed... i just wouldnt want anyone darting infront of me.
With a stock old 22re? prob 80-85mph max.
WIth a built up 22re with arbitrarynotion or Darren... 120mph is easily feasable.

89 4Runner
3" BL, M/T locks, 33"bfg mt, bilstein, Kayline, tubebumper, toyotafiberglass panels
TBI: Elocker,3.4 w/ORS,b+b,S2Sstg2cams,arias pistons,P+P intake,TRDs/c,URDpullies+7th,downey headers,MAPECU2,WEGO WB, SupraMAF,walboro255,stg4clutch, EPaOo2 sim