I am setting up my first gasser (Zen G26ei) and have a question about fuel fill setups. For many years I have always used a 3 line setup for my glow engines (a Fuel Dot was used for the fill line). I like this setup and would prefer to use it ..... but I am not sure if there may be carb/engine flooding problems with gas engines.
With the glow engines, with the carb closed, the carb never flooded when filling. Would the carb on a gasser be prone to flooding (when fueling) if it is just closed ? .... Do I need a fueler valve to cut off/close the line to the carb when filling ?

Thanks again. Bob