Previous owner vacuum debacle

[doctordeeptrack]

Thank you XLT here are the vacuum ports on the manifold. Also one is shown for the back of the valve cover on the driver side that has a water jacket. What is that device? It's the last photo. Looks like it heats the blowby and keeps it from turning to jelly. Presently it is routed around the back of the manifold up the passenger side and to the triple fitting on the front of the manifold (D) but I fear this is wrong. (A) goes to what I think is a fender mounted device for fuel tank venting. (B) goes to a multi-port plug for red and yellow small vacuum lines and (C) is hooked to the brake booster. the one on the driver side valve cover is hooked straight to the fresh air intake hose just past the air flow sensor.

 

[Flash]

(A) is the EGR.

 

[doctordeeptrack]

the vacuum port to the left of the arrow is what I was trying to indicate but my label is little bit off. I wondered what vacuum hose goes to this port.