why would you add something thru the PCV hole? it just goes into the oil that way, why not use the regular oil filler hole?

As for the bottom half of the rubber grommet, my bet is it's either sitting on the baffle or sitting relatively harmlessly on top of the head. Chances are you could leave it there forever and never notice, but it wouldn't hurt to yank it out anyway.

oh, and while you're in there adjust your lifters to get rid of the lifter noise! <img src="/forums/images/graemlins/nana.gif" alt="" />

Good luck man <img src="/forums/images/graemlins/kewl.gif" alt="" />