So, in other words, the new 16 oz tank sitting on top of the wing now becomes the supply to fuel the engine. Am I understanding this correctly? In that case, will muffler pressure be enough to force fuel from the existing smaller tank upwards into the larger tank? For some reason, I would think it would make sense to keep using the existing smaller tank as the fuel supply, but maybe I'm just way out there....Thanks thus far for the replies.

Brian