The commanded line pressures are commensurate to expected airflow, not measured.
Base line pressures actually go by TPS%; it expects a 48mm throttle body.
So with a 52mm throttle body, for a given...

Since the OEM F-car MAF sensor [and its OEM housing] can handle at least 400 horse, the 'bigger ends off the expensive one' will need tuning just to perform like OEM, and will probably not release...