Cam lobe discoloration normal?

I’d change the oil to one of the 3, Amzoil, Penn or Driven. Yeah there’s some bluing, but the lobes don’t look warn or damaged. I’d back the adjusters off those 2, see how those two lifter feel in the bore, if nice and smooth re-lash then check your other preload/lash. Put that intake back on it and send it.