Alternator charging at consistent 14.7 V

I have been having alternator problems - can’t get the stock one to charge right.

So… I put in a brand new Tuff Stuff one wire that I was saving for a different car. It has an internal regulator:
LINK

I followed the directions and ran an 8 gauge wire directly to the starter relay. It works, but perhaps too well. I’m reading about 14.7 volts at all RPMs to a brand new battery. This is with no lights on/accessories.

Is this too much? I always thought the voltage should be in the 13.x neighborhood.

Thanks!