Thanks for the information and advice. I ran 5 tanks through the engine today. I had it running so rich I think that it was blowing out more fuel than it was actually burning. I ran it at pretty low RPMs when I did this. As I went through the tanks, I noticed that it ran smoother at the same throttle position.

Is there anything else that I need to do?

Now that my engine is broken in, when I get the air/fuel mixture set, will I still get some fuel blowing out? Will this affect my aircraft at all (ie fuel on the aircraft skin)?

Also, would it be worth it to buy a newer engine down the road? How do the new engines run differently?

Thanks for being patient with all of my questions!