I would do the run like I said and also Stefan and then check how the engine is acting in the pits when you bring it in. I did leave out when the engine is way to rich the engine will come into the pits run high idle for awhile and then drop down and when lean the engine will just stay running at a high idle. So run the car on the track and then check fore one of the 2. If all is ok. Adjust the idle. If not then make needle changes as needed.