[Loud4nuthin]

Do these rocker arms look fine?
Why is there color differences in the different chambers is that the VCM
Should I be fine? Im new to engines sorry if this post is redundant

 

[Loud4nuthin]

Hey thank you for taking the time
So I will check the cam as said previously
I did notice some play on the the arms on the intake side of cylinder 4 left in pic, should I service the valves and springs?