there are 2 holes (one on distributor side,other on tbelt side) they are in middle of valves. well basically the distributor side hole was clogged up with oil crud and the other one was fine. i thought it was a screw so i always left it there. but i cleared it out with a screwdriver. and after my oil change and clearing that hole out, the car drives a lot better.
what are those holes for? im thinking oil/air passage its hard w/o a pic so if anyone has a pic of the head w/ valvecover off send it to me