Don has it correct.   The big bore continentals will bypass fuel in this setup and circulate fuel through most of the hot lines.  I sometimes let mine run 1 minute or more before a hot hot start and 30 seconds on a hot start.   There should be no fuel measured in the fuel flow meters in this condition.     There should be no fuel pumping out on the ground in this setup.    It just circulates through the pump and back into the tank.  This works for TSIO and IO and it supported by TCM as one of the ways of dealing with hot starts.