Thanks again for all your help ot there.  I am trying to find the
Origination of the line for the vacuum advance for my 86 cat.  I have
located an intentionally blocked line that comes from a junction valve in
the passenger front of the engine, but it doesnt seem to have any suction at
all.  It also apperars to be too short to reach the inlet to the
distributor, but I am not sure if it ever been cut.  I also see two lines
going from the cap that go nowhere.  One on the top the other on the side.
The top ends in a broken connector that is just floating around the engine
compartment... I have not traced the lower line as yet.  New owner of an old
car.  Sorry if I appear so needy....  I havent got my manual as yet. ;)
Thanks for any help.

Peter