Brain fart regulator question Options

[mb911]

So was noticing I have less voltage while the car is running. I am use to seeing 13/14 volts as the pretty much normal. I have a fairly new marchel alternator and this year I am seeing 13v on the high side. Now I do have more electrical items, wide band o2, mega squirt, and active exhaust. Regulator going bad? Pictured in upper left. Hmm maybe I have them on the wrong pins? Might have messed that up?

[mb911]

I want to quantify a few things. As rpm increases I do see charging just not what I would expect, alternator has a few thousand miles on it from @mepstein and his rebuild source, the charge voltage was spot on last fall when I put the car away for the winter, I just cleaned up wiring but did change out the voltmeter I had for an integrated unit from John bell, the battery is 10 years old just confirmed this morning, I am changing that out today, one thing I noticed a few weeks back as the battery tender was on the battery isolated from the car is that the tender was charging the battery for a day and getting hot. I assumed it was a bad tender and bought a new one. It’s the name brand battery tender so not sure what was going on. I will verify everything today maybe. It’s like Texas up here not sure how you guys work in that temp on the regular