russaz1311,

You didn'tsay what gas engine you have buta gasser doesn't use a presure line from the muffler. Your vent line from the tank is vented to the atmosphere. Route it down from the tank to the bottom of the fuse and let it hang down. Put a loop in the vent line and secure it to the top of yourfuel tank.This is to prevent fuel from running out of the vent line when the plane is in a downward additude. The carb has a built in pump so your 9" fuellinewill be ok. I always run a three line tank. Line 1 to the carb, line 2 toa fuel dot forfilling, and line 3 is the vent line.