Ammeter Maxed

Valiant73 said
When I installed the alternator and voltage regulator last week, it was reading 14.5 at the battery while idling. With a brand new alternator and regulator, what esle could be causing this?

That may have been because there were no loads on the alternator and now...

Valiant73 said
At the battery was 13.3 while running. Increasing the rpm brought it up a little, but it still stayed below 13.5.

There are additional loads, one of which could be the battery is discharged and/or other possibilities.
You're investigation will require figuring some more things out.
One is easy. Measure the voltage across the battery with the key off. See if its near 12.8 V

Valiant73 said
Once the fan kicked on, it dropped to 12.7 and increasing the rpm didn't change the reading. The ammeter was still reading high and would max out with an rpm increase.

Two things. Lets deal with this one here. With the fan on, and the battery charging te alternator is maxed out idle rpm.
If the ammeter is reading high at idle, nothing else running, that means the battery is charging.
Then on top of that, you see it increase toward charge when the fans kick on. This means the fan was wired to the battery.
Fix this right away. Move the fan power to the alternator output. This may not be the permanent solutionb but will get past the danger of abusing the battery feed.