My speedo only goes to 85mph, but I've pegged it multiple times.
My toy is a '49 3100 with a 327, m21 4spd, 3:73's, & disc brakes. It cruses comfortably at 70 + mph all day.

1949 chev 3100 3 window. 350hp/327/m21 4 spd, 12 bolt rear, power brakes, 3" dropped axle from Sid's. Disc brakes next.