ok just did a full p&p and 3 angle valve job with 1mm oversize valves now here is my issue i have a vacumm leak and the car is misfiring i know were the leak is but i cant find the hose that hooks back up to it it misfires while idling but when u cover it it idles correctly so my question is should i keep searching for the hose or could i just plug the nipple and go like that

You should find the hose. All of the vacuum lines serve a good purpose (except maybe the evaporative emissions).

Well there was no other hose so I just plugged I off and I found the real reason for my misfiring