How many of us are there? Owners of Dodge based RV's?

Thank you guys! Very interesting discussion and a lot of informations and links!
I was a littlebit surprised, as i couldn't finde a fuel return line at the carburetor.

A very simple way to cut the fuel supply when the engine is not runnig (in case of an accident) would be an emergency shutdown by a standard relais and oil pressure sensor. No oil pressure = no power at the fuel pump.
Or by the D+ signal from the alternator to relais and the relais switches the fuel pump on and off.