86 cj7 vacuum question

Well, I am the happy owner of a new 1986 cj7, with the 258 motor. The previous owner completly disconnected the computer -- the wires running into the firewall are cut off flush. It looks to have a stock carter carb. Could someone here please describe to me how the vacuum lines should be run -- the minimum needed. Also, what needs to be plugged up. The previous owner has modified the vacuum system somewhat, and I want to check what he has done. The jeep runs good, but wants to stall in cold wet weather. Thanks for the help.