I took Nick's advice and bought 95% Everclear to burn. It's fantastic, zero fumes. I still run outside but the sweet smell of nothing.

Decided to use this Bing vaporizing burner that came with my engine. I replaced the wicks in it as they were shot. And it didn't burn evenly.
I made new wicks with torn and trimmed cotton coarse sheet. I trimmed both pilot and mushroom wicks flush.
If you look at the picture, there is flame at the base of the pilot wicks. They are little pipes pushed into the tin. Perhaps they were soldered in at some point? Now they are press fit. Is that correct?
The fire seems rather energetic but perhaps that is correct.
This is my first carb burner.
My Märklin's are missing their carbs but I have those dialed in and don't kick out as much flame as this. What I did on my carb-less Märklin was make a brass insert that holds the metal mesh wick, which is cupped a little on top. It "holds" the flame. I think it works quite well. Lots of trial and error to get that dialed in!
Back to the question at hand... Does that burn look correct? Or do I need to seal around the pilot wicks?