We just made some minor adjustment to the fuel curve but it did ok for a crate motor making 460 HP and 451 lbs of torque at the wheels. That would be about 530 HP at the flywheel so the Mopar rating is very close. Might have been able to get another 15 or 20 HP out of it by giving it more timing but we did not push it as I was not looking for HP just good drivability. We could not make it start quicker, the AEM sensor just has to read the cam sensor so many times.