ORIGINAL: slodsm
Yes it will, but very little and actually none at all until it gets running because of the lack of vacuum in the design. It will run extremely lean if allowed to suck only.
I don't quite understand what you mean here. "untill it gets running because of the lack of vacuum in the design."
You do realize the whole point of the venturi design on a carb is to suck fuel and the engine must "get running" in order to provide exhaust pressure as well.
The first few Nitro engines never had exhaust pressure lines. When tuned properly they will never run lean, same with current setups as long as the tank height is not lowered.
Ryan