Seriously Need Help

A few more things to check:
A) belt tension
B) all your grounds for battery (battery to block. Block to car and car to battery) and VR ground.
C) connections of battery to gauge and the thru bulk fire wall connector.

Look- things were different 50-60 years ago. Don’t expect this car to act like a modern car unless you swap out modern parts. Crackbacked headlight relays help, not sure of your car or what you have done, but something’s todays seem odd but were normal back in 196x