i am working on a 70 mach 1 mustang with air conditioning and trying to figure out where the vacume lines go on the heater box. any help ? is there any place to get diagrams? or can you jus tell me where they go from the back of the plut on the control to the heaer box?
there's a vacuum line that runs along the rear of the engine compartment. It starts at the vacuum tee behind the brake booster and goes into the firewall on the passenger side by the heater core.Only line diagram I could find was for a 68 A/C http://www.treasurecoastmustangs.com/tech.htm