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It looks alright to me, in my limited experience. When I first removed my cover to adjust the valve lash a couple years ago, I was surprised at the golden brown and the black carbon. I asked around. Most thought it normal.
I would think no caron buildup could mask real damage to the piston rings such that poor compression could present as better than factory! That would be something to patent! No, your compression is really good because the engine is in good shape. Maybe carbon is lifting great compression number up over OEM specs.
Wait and see. Look for oil in coolant, and coolant in oil. Maybe do a cheap and easy block test for hydrocarbons in your coolant.
Enjoy. Your. Ride. ... with that snazzy new valve cover. Did you bake it in the oven?
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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