[jimTN]

I would redo that one cyl, get some steel gaskets, use copper coat on both sides, torque the heads, run it, torque it and change the oil again. Those composition gaskets are a pain and prone IMHO to problems. I just went thru almost the same thing except it was the pan rail plugs that leaked into the oil for 20 yrs of storage. I went one step further and had the heads milled.