help with holley 2 bbl vacuum hoses

The upper one (with the short piece of rubber hose on it) is a cold-idle enrichment valve used with certain emission control system configurations. You can leave it alone; it won't hurt anything to stay the way it is -- it is not a vacuum leak. The small lower one is venturi vacuum to provide a signal for the EGR system -- which you said (in your PM to me) your truck doesn't have. So, plug it.