Purchased an 88 325 (2.7L seta) a while back with the following modes:

Mark D Chip (91oct)
19lb Injectors
AFPR (with gauge)
IE Shorty Headers
Free Flow exhaust

Wondering what pressure the AFPR should be set to for this set up? The car is running a bit rich.

What is the calculation to determine this? This would be helpful as I will be doing the 2.7i swap within the next 2 months