Still need help!

[89foxbodycali]

Ok, if im right, i found the line that goes to the bypass valve i posted on yesterday. Now i have a new missing line. What is this part on the firewall? The line going to it is the one i need for the valve. Is this new part a smog piece? Where does it get its line from?

 

[Saleen0679]

That's the check valve on the firewall. The main line in comes from the vacuum tree on the driver's side. The lines out of the valve go into the firewall for the HVAC controls and the other goes into the fender well to the vacuum reservoir. Someone rerouted the line to the left. It should be going into the fender well and not to the distribution block.