[STP67-72]

I just installed a vintage air unit in a 68 a few months ago. The unit we ordered was a special order that went out through the pass. side fresh air vent. Ran the hoses between the inner and outer fenders. I put the heater control valve inside the cab, just like you want to do. My hoses were already going to be running inside cab.Like ASA pointed out. I either had a shorter cable or i made a big loop in cable. Worked out great. Cleans it up under hood a little. Hope this helps. I have some pics. stashed that i have thought about posting on here.