technique to sealing a oil pan on a 360?

I know that I have asked this before but, what I'm looking for is what is the proper way to install the gasket. Do you put a skim coat of a certian kind of sealer on or do you install it dry? Do you hurry and put it together right away after you put a skim coat of sealer on? or no sealer at all? Also I'm going to have to take it off and put it back on while the motor is in the car, it's a 67 barracuda. Any suggestions?

Pat Faley
67 NB S Clone
Peoria IL