Ticking noise, 383, can't locate the source

jas0162 said
The rockers all look ok on the pad where they push on the valves?

Yes. The wear on the various points on the rockers all are consistent with each other, nothing worn out, or thru, or otherwise.

How would you be able to tell the rocker is hitting the spring retainer?

It's not obvious by looking at them, at least to me.

Problem is I don't know what to check next.