Possible oiling concerns

Have you found a restriction anywhere? I'm not sure that I agree that there's enough oil coming through the head while cranking. I'm just not sure. It doesn't look like a strong supply to me. Maybe I'm wrong though.
After it ran for a minute or so, oil began to run across the rocker arms and down the head, something I never saw this motor do previously. So I think as far as oiling goes, I’m good now. The question is, now that I’ve put my rockers on with not a care in the world for where they were before, how do I adjust them. Even over my lack of exhaust pipe I can hear the valves ticking. I’ve read that intake should be .01 and exhaust should be .02 and to check when running, but if the rockers are going up and down how do you know if it’s loose or not