Getting ready to install the reworked heads on my 1959 Edsel 292.
I read the factory service manual and it says:
    "Coat the head bolt threads with water resistant sealant" and
    "After the bolts have been tightened to specifications, the bolts should not be disturbed"

The head bolt holes do not open to the water jacket or oil galley so why would I need to use a sealant on the bolt threads?  I was planning to just lightly oil the threads.
I also understand the manual was written for the metal head gaskets.  I'm using the blue FelPro fiber gaskets.  I've read that the cylinder power rings will seal better if the heads are torqued and backed off and re-torqued 3 times.  Any opinion on this from guys who have done it?

A couple other questions.  I got the FelPro full engine gasket kit.  It contains a 1 1/8" copper o-ring and a slightly larger copper flat washer (bent to provide spring?).  I took a flat copper washer off the oil sump tube (inside pan) so I assume the flat one goes there.  Where does the copper o-ring go?

My new oil pump came with a 1/2" rubber cylinder to seal the sump tube in the pump.  The FelPro kit has the rubber cylinder also but it has a metal end on each side.  Which is better?  I'm leaning to using the all rubber one - it came with the pump so it should be the right one.  Plus the one with the metal ends would put a metal end against the metal of the jam nut - seems like that could leak to me.  The rubber would seal in the opening but couldn't oil get around the tube itself and out at the jam nut/metal end joint.

Thanks - this is a very helpful site!