Seems like '80 is a transition year on the climate stuff. Are your climate control buttons vertical (evil climate control servo
), or are they the horizontal buttons?
You have one of the older trannys like in my '80 wagon I would assume. Vacuum makes the tranny shift, and lack of vac makes it shift late, very late, and will be very hard when it does. Do you have a pic of the top of your valve cover, where some of the vac stuff is?
Over by the firewall, brown is shutoff, solid yellow is door locks, yellow with gray stripe goes to vac cannister, and green goes to climate contol stuff. There is also a black vent line from IP that goes through firewall and just lays there open under the dash. Does your main vac line, from pump to brake booster have 1 "T" off of it or 2?