Hey guys I am sorry for raising an unnecessary flag. My concern was that when I would return from a short trip i.e. 10 miles I would get out of the truck and notice that the upper hose was bloated and hard as mentioned earlier and I was seeing some weeping from the upper solder joints. "what was I thinkin" of course it is going to build pressure after you turn it off and there is no circulation.
As far as going down the road 45 to 50 mph she ran 180 degrees with a increase to 200 at lights and once going again would gradually return to 180 again. I think all is well! The sky is falling!