u/BassFishingGod

Recently changed valve stem seals thought it went well fixed all the issues I was having and then my luck the oil leak I was fixing is now presumably worse. I got 13 miles to the quart of oil before my check oil light came on and I checked the dipstick and it was almost all gone. Is there anything I could have done wrong? I took the valve covers and was trying to check the seals and I saw one got lifted to the keepers on the spring could that have caused that much oil loss? Along with that just to have safe of mind (I don’t wanna do this again I dropped a valve into my cylinder and that was a pain to fix) is this the correct way the seals are supposed to sit on the stem and valve guide?

My 1993 Ford Ranger 3.0l v6 manual is finally put back together and I got it running but I noticed the engine is running really rough shaking the block and gear shifter and while I’m driving it will just stall the most recent was when I put it in neutral, I suspected it to be the idle air valve so I replaced it but it’s having some weird throttle issues and idle issues still. What should I do to diagnose and fix it?

Parts I changed:
Valve Stem Seals
Spark Plugs
Spark Plug Wires
PCV Valve
IAC Valve and Gasket
Valve Cover Gaskets
Upper Intake Manifold Gasket

(I know the IAC Valve I got has a adjuster screw but I have no idea how to properly set it)