Overcharging 68Dart...need some short fused help (pun intended:)

It's possible the oxidation where the resistors are rivetted continues into the connection. Other than that, if the points are good, its good.
upload_2021-5-26_20-2-59.png

The heavy duty VR has the screw adjustment. I think I've seen that in the service manual on the Essex built regulators. As far as I know they work the same way.
Since the fusible links aren't melted, and the point are fresh, there's no reason why it shouldn't work.

If there is a problem with votlage climbing beyond 14.9 its most likely that the regulator is 'seeing' the wrong voltage, or the somehow the regulator is being bypassed.