Well, I CAN WALK! It's been a long 6 weeks of recovery.. ALC/Meniscus surgery sucks! I was cleared to walk tuesday. Got the car running wednesday. I reset the valve lash using the EOIC method I have in the past. I verified that rocker roller was directly in the middle on the valve stem . All rockers were torqued to 20 ft/lbs in 1/4-1/2 turns. What I did find (and the source of the noise) both lifters on cylinder 4 were bled down and one on cylinder 3. Upon firing it up it still made the noise! At this point I decided to take it down the street and eventually the noise went away! Very happy. I've since put 50 miles on the car. It sounds normal and does not "overheat" like before. Best yet, the new headers sounds great, the car makes more power, and it idles WAY better. I attribute this to the new injectors, a better maf, and its possible I fixed some vacuum leaks? Man, did it feel good to drive the car!