Cherry6speed

I am nearly finished getting my engine back together and noticed a vacuum connection nipple on the bottom -(side) of my diverter valve. I realize one connector runs vacuum from the valve itself to the driver side manifold tee. I can see that one . Is there a second line running to the valve at this nipple? My car is a 93 and I donno or recall seeing two small lines. Just the one. Any one have any diagrams or pictures? I checked my digital pics, archives and lokked for any spare lines hanging around and of course every thing else shows up nice in the pics but this valve. I am going crazy, Help. :crazy: