IAM is used when timing needs to be pulled across the board, whether that be because of severe knock or change in fuel(93 to 91 for example). Try cleaning your maf with maf cleaner. Those kn filters have oil that like to stick to the sensor.
Did you disconnect your battery recently? If so, it will revert to the stock setting of .5
If not, take the k&n out, clean your maf and stick a standard paper filter in. You won't see any gains and are less likely to contaminate your maf with oil. Do some data logging if possible