Sure, A header tank is a second small fuel tank (perhaps 3 oz in your case) that you plumb in between your engine and regular fuel tank. The purpose in your case is to keep one of the tanks (header tank) completely filled with fuel at all times, thus less likely to suck air. Do a search on here for "header tanks" and you should find some photos of set ups.

Here's how you plumb it:

>Run the fuel line from the carb to klunk line of the header tank.

>Run the vent line from the header tank to the klunk line of your regular tank.

>Run the vent line of the regular tank to the exhaust nipple.

What will happen is the header tank will stay almost completely full at all times as that header tank will not fill with air till the regular tank is dry.

Notes:
Since you are running a glow motor, try to keep this header tank (and the regular tank) as close to the center line of the carb if possible. Also, keep in mind the header tank will give you usable capacity so you can also decrease the size of your regular tank by 3oz if desired to save weight/space.

Also, place this header tank in front of the regular tank and keep the lines as short as possible. You want to try to avoid any lean situations caused by fuel draw restrictions (as on any glow motor without a pump)

Hope this helps..............Mark