69 heater A/c vacuum lines
 

Finally getting the controls to work

Got things plugged in. I’m not getting switch from door operation.

I do have an extra all black line that I’m not sure of its placement.

Is ported vacuum on a Holley enough to run the doors?

Fan speed work except Hi, and cold to hot is working.

You need direct vacuum at all times. Not ported. If your fan is not working on high it could be a blown or missing fuse in the feed from alternator or it could be the high speed relay that's mounted on the firewall.

Ok if I have time tomorrow will try and get manifold vacuum source. Probably gonna have to T off something.

Got em working. Manifold vacuum and everything working as it should.