looks like on your firewall pictures that your missing the screw that was once located on the firewall behind the firewall pad for your backup lights or console. this hole is normally not drilled thru and just a dimple on the firewall unless the car had backup or console. attach is the picture in reference. Also the hole that appears next to your power top lead shouldn't drilled out either and can be fixed pretty easy. And for everyones information a little known fact about 66 metuch cars the choke cable is located on the dimple on the right of the power top cable, not the common choke cable location.
Good eye. Thanks for the comments.
It is unusual, but apparently someone made some mistakes when this car was built. I chose to leave them that way. The hole for the console/back-up wiring clip was punched, but upon close observation, one can tell that there was never a screw put in the hole. Same way with the ones below it-the six cylinder accelerator bracket holes-punched out, but no screws ever put in.
Concerning the holes where the power top lead comes through, it is pretty much the same story. The first hole is typically the power top lead feed hole, the next one is the Auto. Trans. Neutral Safety feed, and the last dimple is the AC. Both holes in this car are "clean punches" like factory. The original firewall mat still even has the "knock outs" in place for the other holes. The power top feed appears to have been originally put in the Neutal Safety feed hole (as pictured), so we decided to put it back that way.