280E Missing vacuum hoses

We are the happy owners of a 1983 280E.
The only question is where 2 vacuum points
are supposed to connect to on the fuel-injection
system.
The following link has a picture of what
we are referring to:

"http://albums.photopoint.com/j/AlbumIndex?u=1021038&a=10740160"

We purchased the car like this and it runs fine,
but we're sure they must connect to somewhere
(maybe to each other ?).

Any advice apprectiated.
Regards
Spiro