you had it running on a wideband when you did that?

being a MAFS controlled fuel system, if raising the boost does increase the airflow through the motor it should add fuel. but if raising the boost doesnt increase the airflow no additional enrichment should occur. But theres no way we can know. you have to look at the ECU and its maps to find the answer to your questions.

i usually run 12:1 at redline and 13:1 to 13.5:1 at torque peak. but i wont do any high speed runs because of the way i have it tuned.