Top hose hot , bottom cold...new radiator

The lower rad hose is the suction side of the pump,, but the pressure in the system is whatever the radcap is rated,,

Well is the engine running hot? What is the temp? Your top hose should be hotter than the bottom as the water flows in thru the bottom and out thru the top.

Dont you have that backwards?

yes, he does..

hope it helps