Fastest I been was 140 in my Dads 84 911 Carrera coupe as a passenger. Hit the off ramp and went around it like we were glued to the pavement. I went 115 in my 77 Vette,120 in my 84 Vette and 130+ in my 87 GN playing with a Viper on the highway(he lost by 3/4 car length to the 130 mark when I said whoa!).
Also my Dad built an engine for a 65 Vette a friend owned that was dyno'd at 650HP. Was a 327 .030 with 13.5:1 CR Pistons(this is back in 78 when I was just a kid) had full roller valvetrain including a solid roller cam that was "smooth" idle. All I know is it would do 120+ in the 1/4 and you could not pull yourself out of the passenger seat when it was going full bore. No traction for launch but it was nasty.