I did some searching on the web for returnless systems.  It seems that several manufacturers use them.  The aftermarket has adapted an additional pump electronically controlled to provide additional fuel for turbo/ supercharging applications.  I was interested in returnless fuel injection for when you have low fuel level and the AC is in a nose down attitude and the sump is being drained via the return line.  Has anyone looked into this?  Thanks for any help

Joe Berki
Limo EZ