I'd be pulling the jets.
If the bike is 100% bone stock, as in stock pipes, air filter, air box, etc....it's probably rich due to your elevation unless your dealer rejetted it. (sometimes they do, sometimes not.
I'd pull one main jet to see what is in there.
I'd say you're more than safe.
Mix up a tank at 32:1...if it's still black on the plugs, remove the snorkel to help it breath a tad and lean out the jetting a tad.
I bet that would just about set you up perfect!!!