My 250 ran a 583/607 lift mech.(3800-7200rpm band) over 12.5-1 m20 3:08 gear when it was on the street Most of it's 17plus yr life before I started running mostly on th etrack and changing rear gears from a 3:70 then a 4:56 final was a 5:13 (I got 16mpgs city with the 3:08 gears) and drive that car everywhere.
work ,track IT was a daily driver. And Yeah I'd buzzed the Hound
out of it. Many times to 8000. When i had the car on a dyno the motor was right around 15-16 yrs old and It had pulled around 320 at the rear.
God doesn't like ugly.
