I know what that say about opinions... yet I'm still going to ask.

I started checking over one of my heads a bit closer than I had before. I saw what I thought was a lot of pitting in and around the combustion chamber. At first I thought it was just spots in the casting that came out during porting. But they are also on the previously machined surface, inside of the fire ring. I also noticed one of the chambers had a ripple spot. I'm curious if this is a sign of a previous weld repair that wasn't completely smoothed out or could it actually be from high temp and melting?
Would the pitting be a sign of high temps and detonation?
Should either of these issues be addressed before using?
Opinions? Click image for larger version. 

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