I promise you I’m not a 15 year old haha. I sensed sarcasm over humour so.. but yes, I’ll pull the upper off and check everything underneath. Thanks again !i think you may be too young to catch the attempted humor.
but to answer your question is to remember how old those rubber lines are, some get hard and brittle and some rot and collapse so inspect and replace. Rubber grommets like the one for the pcv harden up and leak vacuum as well.
I find pulling the upper intake give you access to most everything you need to check.