I know it was broke in correctly, My father has built many many mopar engines and big block ford engines. And even tho he didn't build this engine, He certainly knew how to break one inn.
And the number 7 plug didn't always look like this, I have had the plugs in and out of this thing a million times in the last 6 months. And it never looked like that.
I will put a new plug in it tommarrow and check on it again in a few days and see how its looking. When I have the number 7 plug out should I turn the engine over a few times with the ignition off to blow out whatever might be in that cylinder?
I didn't put a new plug in cylinder 7 when I was installing my new plug wires because it wasn't fouled. And I hate having to take my new plug wires off and on already lol, I suck at pulling plug wires off, I normally break them. So I just bought some spark plug wire removal pliers and I will use them when removing these new wires.