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89 vacuum-what is this?

742 views 1 reply 2 participants last post by  mg man 75 
#1 ·
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.

Thanks,
Russ
 

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#2 ·
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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