If it is dying out as you now describe it is way too rich. It runs pretty good with
the glow connected, by the fire goes out when you remove the glow.

Set the high speed at full peak wide open, then just richen it up a couple clicks for
now. Keep the glow igniter on....drop it to a medium to fast idle, not a slow idle.
Carefully adjust the idle screw to lean out the mixture (presuming it is too rich)
while the engine is running with a long, skinny screwdriver. Set the engine to where
the engine is running the fastest at idle. You may have to drop the speed a bit if the
engine starts running really fast, to get the proper setting.

When you get the engine running the fastest speed at idle, it should work pretty good
bringing it back up to high speed (transition). Now take off the glow and see if it continues
running. Reset the high speed as normal.

The engine should run pretty good at this point. See what happens now.

FBD.