70 Dart Stopped Charging

Changed the voltage regulator out for a R296. Now it's still not charging the battery but my voltage readings at the alternator have changed and the ammeter goes from normal to very high at the slightest increase in rpm. Other bulbs such as cluster & headlights also get brighter with rpm when they haven't before.
The large terminal is at 14.5v. The blue/pink wire is zero and the blue wire is 12.5v.

Before I swapped the regulator I had no voltage at the large terminal unless the lights were on "using cracked back wire mod" and the two other poles were identical.