ok so yes I am new to tuning but not new to engines, I have a lq9 with ported 243 heads, 408 ci, 102 mm tb and high rise intake, with a TSP torquer v4 cam on a 111 lsa. I fell like I have a somewhat decent tune car runs and idles but with part throttle car surges up and down... looking at my log I noticed when surging I noticed the Commanded AFR was 14.6 and would switch to 12.19 and go back and forth until I let off the throttle?????? I must be missing something but cant quite figure it out. I thought it was a airflow issue but why would it command to 12.19?? any help or ideas would be greatly appreciated!!! I'll try to post a log later today