You are about 500 feet above sea level so yours should run about 215 fully hot and pressurized. Usually over temps at speed are an airflow problem while over temps at idle are coolant flow problems so I don't think you need a new radiator. Go back and take another look both sides of the radiator for air blockages and debris. The Bravada's are notorious for picking up lots of leaves. Also the first thing I do whenever I have an over temp or even smell some anti freeze is to get a new radiator cap. Cheap fix if it works and your going to want a new one if you have to replace the radiator anyway