Power brakes

I had a duh moment. My Jeep started idling high.So I take off the IAC,using carb cleaner to try to fix it.Then realized there was a HUGE vacuum leak right where I was working.A vacuum port dead center of the intake manifold had a piece of broken off hose,which I assume was plugged.My Jeep has no power booster.Has anyone heard of this?

In my opinon, It never hurts to clean something weather it needed it or not. the IAC probbly could;ve used a lil cleaning. I'm not sure about the vacum plug can u post a pic?