[SVO429]

I used to have a falcon with an australian built 351 cleverland ,it had a carter thermoqaud carb on it ,it was factory stock no mods , every time i turned it off it would diesel (run on) to stop it running on, i would push the very bottom of accel pedal down 1/2 an inch with tip of my shoe then slide my foot down off the pedal,this would make pedal bounce up,and close the primary throttle plates a bit further.
If i did this it would never run on if i forgot to do it ,it would run on and become hard to start the next day.
This may sound simplistic but it worked