A couple of things. The thermostat should be a 180. You may have the wrong water pump on it. The water pump sucks water from the lower hose, pushes it into the block, and it eventually comes back out the top of the intake at the t-stat housing and dumps back into the top of the radiator.
Once your thermostat opens, your lower hose will always be cooler than the upper hose, as that's the cooler water coming back out, and the upper hose is the hot water coming out of the engine.
If this is all correct, then get yourself a shroud, a 6 blade fan and a recovery tank.