(Sorry, the picture was to big but he post posted anyway)

87 Samurai JX Tintop . . . all stock.
I have discovered a vacuum port which is not connected but plugged (nail and a hose) since the vehicle was acquired.
What I think it is . . . the vacuum relay which controls the opening of the secondaries on the carb.
The question is . . . the single line off of the relay to the right in the picture. "Should this be always plugged or does it actually connect somewhere"?

Thanks,  - - - Dave in S.C. CA