Thank you for asking! Since gasket matching and installing the 181 my long term fuel trims have been above 7%, some times seeing up to 17% in really hot (high load w/AC) weather. My fuel pressure is correct, so I must assume that after modding the motor is thirsty and adding fuel.

Hopefully with these 15% larger injectors, my fuel trims will settle closer to zero, letting me concentrate on the open loop AFRs later.

The ECU is always trying to maintain 14.7 AFR by manipulating the fuel trims (until open loop).