engine noise

92 ls 220k no smoke, dont burn oil, dont leak oil. when i pop my hood and rev the motor up from the throttle body i am getting pretty strong vibration and a vibration like noise comming from the head i think from about 2k to maybe 3 or 3.5k i really need to do a timing belt and tensioner job since idk when it was done last. pulled the cover off the other day and i i did have an amount of play while i reved it up. i also was going to do a valve adjustment yesterday but noticed my feeler guage is at work and the local parts store wanted $15 which is crazy lol. im sure this didnt start yesterday i just noticed it. but idk anyone think i have any problems? i know its hard to say. its just hard to explain how the vibrations are and the noise is like a high vibrating metal to metal noise kinda of like the valve cover is making the noise from the vibrations but like i said i could maybe be the timing belt right?.. one other thing… my power steering pump is leaking a little bit i noticed the other day and the belt actually wobbles a little bit (the other 2 belts dont wobble at all)… noticed it cuz of a belt squel everytime i start my car. oil is getting on the pully and causing this i believe. i give it a quick rev to like 3k and it goes right away… also if heat is on the squel will come back and get this… when im sitting somewher lke at a light… everything turned off even radio… when im holding my brakes i get this weak squeal noise everytime i noticed. if i take foot of brake and put e-brake on the very light squeal goes away… idk any input on any of these issues would be appreciated… also want to let everyone know i got an alldata account if anyone ever needs info just cant give the password out… will get you what you need though. thanks

engine mountss are worn probably…pulleys are weak/damaged…belts slipping from oil