1972 Demon Accel Cable Firewall Grommet ?

On 73+ there is a grommet that goes on the gas pedal bracket. The cable slides through it then gets a washer and a clip to hold the cable on.
I dont remember what year they changed to this style. The earlier one attached right to the firewall. I would assume this arrangement used a grommet or a foam seal. Its been many years but the foam seal rings a bell.