Finally got a chance to mess with this again. Started the motor, Smoked the belt...Alternator bearing locked up...I have never had a vehicle that costs me so much to just fall apart...
So, Flushed about 10 gallons through the core, I can now get about 140 degree heat out of the vents with a 50 degree outdoor temp. Does this seem right? Im just not sure what sort of performance to expect any more... My modern insulated vehicles have me spoiled.