Radiator question

If the lower hose is 130* when the engine was at 190 and at 220,, the rads doing it's job, losing heat..

True, but at what flow rate?
(that was my point)
If you have 130 degree coolant coming out of the radiator then why is a new rebuilt motor overheating just like it did before it was rebuilt? (Flow volume)

And yes it should have a spring in the bottom hose to keep it from collapsing with the suction from the water pump and shutting off your coolant flow at higher RPM's.