Engine break in help?

hello all,

I recently broke in my 383 and ran it for 20 mins at 2200 to 2500 rpms. After I was done I changed the oil and ran it a bit more. After that i changed the oil one more time. Then I cut open both oil filters. The first one was black and had all kinds of assembly lube in it, also the oil was real shiny like it was pearl reduction paint in an oil lik color. The second one was clean and had a oil color look. But still had some shiny pearl reduction coming out. I cut out some pieces...

Engine break in help?