OK, so I removed the thermostat and it will sit there idling at 185 degrees. Took it for a 2-3 mile drive and it dropped to 180 degrees running 40-45 mph. Got back home and left it sit and idle for another 15 minutes and it went back to 185. It sure runs a lot better at the cooler temperatures. Thanks everybody for your support and advice. Hopefully I am fixed, but I doubt it.
