I got the new adjuster screws in and what a differnece. No more valve chatter. I took it for a ride and it did great. However, there is now a slight tap or knock present toward the rear of the motor. I'm not sure what it is, sounds like its up top somewhere. I used a long extention an it seems like its coming from the last two valves or the last cyl. Maybe one of the valves is adjusted wrong? But its more of a knock than a tap. Any ideas??

And the rear main seal might be leaking. I sure as hell hope not b/c I used a sleeve and new seal. But theres drips present on the bellhousing after a road test. Doesn't leak while just sitting there idling. I have a bad feeling about this.