Just a question. If the IAC was 9 WITHOUT the air cleaner and it was 0 with the air cleaner ON, does that mean that the system needed LESS air when the air cleaner is on to maintain the idle at a prescribed level? So the system is getting more air to it with the air cleaner than without. I am using a K&N element. I did run a dyno once and found that I got an 10 additional HP with the air cleaner element on than with it off.