Another vacuum generator question

[davidkerryedwards]

My apologies for plaguing the list with vacuum generator questions but
I'm trying to figure out if I can retrofit a different vacuum
generator. The original had 3 ports in addition to the threaded
supply port. The are labeled with letters "E" "V" and "s". The "V'
is the main vacuum line to the vacuum canister on the cruise control.
(I believe). The "e" is exhaust I think because this is where it was
'leaking' or exhausting. The 's' had a vacuum hose attached to it but
I don't know where it goes. Can anyone give a guess as to waht "S"
means or can you tell me where the additional vaccum line terminates?

Kerry
82 FC 35
Denver