Yes, the AC vacuum line runs from that special hollow manifold stud to an accumulator can within the fender and leaves the car to pass through the firewall below and to the left of the wiper/washer and behind the brake booster.

This photo shows the area behind the booster the line passes through, the lines in and out of the can under the fender, and alternate left washer nozzle line factory routing into the firewall of some 1st gens:


And here's that special hollow stud in the intake manifold as a vacuum source: