#1 needs to connect to a switchable vacuum source. It's the shutdown solenoid.
#2 is the IP relief valve. Connects to #15 for return.
#3 is IP fuel supply, connects to #13.
#4 is lift pump discharge, connects to #14.
#5 is fuel supply from tank.
#6 is a vacuum switch for EGR valve cold engine cut-out.
#7 is N/A. (Provides electrical ground to prevent heater blower operation with cold engine.)
#8/9 are vacuum supply.