I see that on the new 103 tb nw is recommending leaving the scalar values stock. Why would it then be necessary to change the values for the 102? Reason I'm asking is I currently have a 102 on my z06. With stock scalar the car runs great. As soon as I change it to ~7300 it runs rough and stalls. I've changed the final airflow numbers around and still can't seem to find the sweet spot. I'd like the pcm to know how big the tb is for it's calculations, but so far leaving the scalar alone yields the best driveability