I don't do disassembly anymore and don't think we have had a 220 head off anyway, but your pictures look a lot like the front of a 104 motor that we do about one a month.
On those we pull the chain tentioner and remove the exhaust gear from the cam. With the extra amount of chain it is lifted over the cam adjuster on the intake cam.
For some light reading you might look to this article I wrote on 104 head gasket replacement:
http://www.babcox.com/editorial/ic/ic100345.htm