Hey back here again. I made tons of progress thanks to the community’s help. I really appreciate all the great advice I get when I come here for answers. I appear to be stuck again because I swapped out the heater control valve but I’m second guessing if I need it or not. I recently removed the AC from this car so would this control valve be irrelevant/obsolete to have installed? Cause if I don’t need it I might aswell remove it and keep it to a straight hose...

Heater Control Valve