Here are the plugs. I pulled #1 earlier in the week and it looks much better.When I pulled the plug I also pulled the O2 sensor and cleaned it. And yes the shiny threads was fuel.
now the plug looks better. So I'm thinking it is a bad O2 sensor. I am replacing the plugs today. O2 sensor on order.
1-4
5-8
I think the plugs look OK if someone can read them better please post your thoughts. The top left is #1, bottom right is #8. O2 sensor read after the collector by #3 and #4 tubes.
I wish I had blown some compressed air around the plugs before I pulled them. There was a lot of FOD build-up around the hole.