Engine vacuum diagrams

I removed the UIM in order to do some work under it. It's been some time and I'm trying to remember where each hose goes. There is a nipple on top of engine block, If I connect a hose on that nipple where would I connect the other end? Or could I just cap it? Question 2: I forgot where the cruise control unit, which is located on passenger's side near firewall, gets its vacuum source( the hose is supposed to go from that unit toward UIM or maybe under it.
Question 3: there is supposed to be a connection between the headers and the actuator pipe to make the actuators work for fifth and sixth port. Help to make that connection is appreciated (location and what it looks like, the actuator pipe).