Not sure what this is for, it's on the upper firewall on the passenger side. A couple of the lines have been broken/cut, so I need to figure out if it is important or not.
It is a manifold block. One line is source on the right of picture, one line goes to the ac/heat controls and 3rd goes to a vac ball in the fender area. Hold vac so ac/heat will work at times when engine does not have much vac. I would fix it all. Maurice
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