1970 firebird dash hvac vacume schematics needed
 

Looking for a tough to find complete dash vacume hose diagram that includes the port locations on the vacume switches. Someone pulled all the hoses out of the 9 pin vacume port switch and need to get them right. I've looked all over the internet but no luck. 70 and 71 are the same with 2 vacume switches on the controler. 1-9 portion and 1- 3 port. Also under hood has vacume controlled water valve and air door. 72 and up are not the same. Any help would be appreciated.