Unless its going to be months and months of sitting , simply starting and ideling a while only destroys the oil sooner from blowby.
Take her out once a month for an hour , with at least 1/2 hour at good load so the engine gets warmed up is best.
DD has instructions in DA Book for out of service over 30 days.
IF you have a inline like the 6-71 purchase a new set of air box gaskets .
Should long term storage be needed spraying fogging oil in the air boxes , crank a turn and repeating will solve the cylinder rusting problems , IF you also seal (as air tight as you can) the intake and exhaust.
DD recommends a special oil to operate the engine fuel system for 5 min before securing the engine.