I would definitely say no to sealant on that head gasket, just as the instructions say. I would also re-torque the head after running it. That is buried in the manual somewhere and on my 216, I always find that some of the values are down some.

1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed

My Chevy Master 4 Door is on the Road!