RE: EVO .46 engine ?
The Evolution limiters often prevent you from leaning the needles to where they should be set.
Often the best setting is just past the limiter... UGH!
That said, it is better to let the engine bog down a bit on the ground, as it does for you now until the engine is WELL worn in.
In the air, the plane leans out, as the engine is under far less of a load when it speads up, as you give it throttle.
The moving air "unloads" the prop.
Until you have many flights on the plane, get into the habit of either running it up slowly once on the runway to prevent it from bogging down at take-off, or hold the plane and run up the engine to clear the carb of excess fuel, then take off.
Removing the limiters is a good idea too.