I think the hose was blowing off because there was no ridge on the thermostat housing, and when I did the water pump. I sanded and painted the neck making it slick.
I roughend it up and reinstalled it.
I just dropped the radiator off at a classic radiator specialist.
It will be recored into a 4 row high performance.
Supposedly it will "cool a locomotive".
$375 out the door.
Hope this is the issue.
Thanks very much for all the help folks, I will let you know what happens.