Aux Fuel

[EZCOPE]

Hi Bunch!
After all the chat back and forth I started reading more manuels. My 65-73 maintenance manuel shows that the nonturboed models - thru 337D - return excess fuel to respective mains, the turbo diagram - as several have stated - goes thru a "y"and could go to either main or aux tanks.
The O2 setup is same as 67/68 models.
I don't fly a turbo model, so have no practical experience with the related fuel management proceedures.