Another question. So with my heater core lines...I don't have the valve/cable system thing anymore so do I need to incorporate a valve from say...home depot in there? If I leave it open it will just blow hot right? Also I will need to plug up parts of the AC right? Any special wiring to get it back in there? I have a WS harness btw.
EDIT: Just checked...it does have the plugs
sorry for asking stupid questions