Thank you everyone for you input.
I thought my thermometer was bad as well but when I gave it the boiling water test it passed.
As for if it was enhanced I do not recall seeing anything on the package. I have to admit that it did lack pork flavor when I tested it. It sounds as if it might have been enhanced since it lacked pork flavor and had tightened up so much over the cook.
I picked up the butt at Kroger when they had them on sale for $1.29/lb a few weeks back. I picked up 3 of them and this is the only one out of the bunch that gave me trouble and lacked that pork flavor.
Thanks again everyone for your input.