88 4.0 Vacuum Diagram

[Cactusface]

I have an 88 4.0 Cherokee that has been sitting for 5 yrs. I have replaced the motor and eveything that goes with it except the exhaust. The engine seems to running perfectly except I believe it should have more power to wheels then it does. The auto trans seems to be working good and there is no sliping taking place. So before I go any farther I was wondering if anybody had the vacuum diagrams for the heating and air controls and the shifting motor on the front axel and how to go about testing these lines for leaks? My Chilton book does'nt have anything on either system. I know that a small vacum leak may not solve my power problem but at least I'll have that issue covered.

Thanks