It's hard to explain what I'm picturing in my head.

What I was going to do with the bottom was actually cut out the bottom, drill holes or make notches all the way around the bottom 1" of the can, drill holes in the bottom that I removed, bend tabs in the side of the can (maybe 2" above where it originally sat, and reinsert the bottom so it now sits higher.

I guess my thinking was that if I notch or drill the bottom all the way around, then more air would get to the fuel by coming up from below through the holes (kind of like a grate).

I know it sounds fancy for something so simple, but it's just an idea I want to experiment with.