I run it in town today (7 miles)and the dead spot in the throttle was much worse. It turned the check engine light on so I stopped and found out what codes were being shown P-480, P-483 and P-461 have been on for a long time. The two new codes were P-2121 and P-2122. It ran fine coming home and the check engine light went back out...
I threw in the towel and dropped it off at the dealer tonight to have the tech check it out.