Hey Disco78:

The item is a carburetor air cleaner vacuum control valve.  Depending on
your engine set up (and since you have a 2.3L) the part is either a
D5AZ9A995 (most likely) or a D7FZ9A995A.  Green Sales has one D5AZ9A995.
If you give them a call at 1-800-543-4959 and ask for "Doc" he can help you
with locating the item since he has a Pinto and knows a lot about them.  Also,
if you need a diagram showing the vacuum line locations let me know and I
can post that for you.

Thanks,

77pintocw

Hey Disco78:

Attached are two possible set ups for the vacuum lines for a 2.3L.  Hope one of them
is close enough to your engine that it will help you.  Your vacuum valve is part 9A995.
Click on the figure for a better picture.

Thanks,

77pintocw