I agree with what Chuck said about running a tube from the carb. diaphram cover to inside the plane. I 've had to do this on many of my gas planes.
I also have a Ultra Stick Lite with a G-26 but you can see by the picture that the carb. diaphram is facing the rear, I have had no problems with this carb. position and didn't install the tube on the diaphram cover.
This plane flyes very good with good throttle responce and no dead sticks.