1967 dart 270 hodge podge

As expected, your 50yr old car has had modifications for unknown reasons. When building a car it is best to have a clear vision of what you want to end up with. Will it be a restoration, a cruiser, a hot rod, or something in between? Build it your way, have fun, but have your end goal in mind. The extra holes in your inner fender are for mounting the ignition resistor, voltage regulator and ignition ECU. These were upgrades added later and are not original the car originally. Your choice what to do with them. The holes for the original components are in the firewall. However two holes would originally be there to mount the windshield washer bottle.