I am working on my 70 Challenger that had factory A/C originally. At some point sombody pulled everything out from the engine compartment. I am trying to put the A/C system back together in the car and have run into a couple of things I am not sure about. I was told that the 70's have a cable operated heater control valve and I found one at a swap meet. When I went to install it I can't find the cable that controls it - where does this cable come through the firewall? I also see a vacuum hose that comes thru the firewall just below/beside the blower fan motor - any idea what this would go to?
Thanks for any info!