71-2 Demon firewall HELP

Need to see where the dash reserve light grommet goes through the firewall so I can install on a 72 Demon.
Thanks Ron

Only 4 speed cars had a dash mounted reverse light. 3 speed manuals and autos didn't have them.

I know that,Tell me where it is on a 4 speed car.
Ron

It's the one behind the master cylinder. '72 340 Demon.

In 1971 that same hole was used for cars equipped with a tach. There is a factory dimple in the firewall (all cars) that looks just like those other two dimples to the left in this pic, it was used as a location spot to drill the hole for the grommet.