Head Gasket Post Mortem

Just pulled the head off, ready to take to machine shop once the roads clear of the snow. I took some photos of the gasket. In this one, you can see 3 spots where the black material on the metal gasket had eroded around coolant passages. Between cylinders 1 and 2 is the worst, which IIRC is the most common failure. You can see bare metal there. You can also see where there's been some erosion between cylinders 2 and 3, and 3 and 4 on the cylinder 3 side. That tracks with the misfire I got on the first 3 cylinders, but not # 4