ORIGINAL: plasticmaster
As for the needle settings, I think they are fine because this engine used to run well on gas/glow and I haven't touched the needles from their good setting. I have, however changed the brand of glow fuel.
It takes more gas/glow fuel to run an engine. So if you are not adjusting the needles you don't have much of a chance of making it run right.
Count the turns it takes to close each needle. That will be your base setting.
Open each needle to the base setting plus 1/2 turn on the low and 1 turn on the High.
That should be a ball park setting.