I love this part of the article
"""It's fairly easy to adjust the AFM to signal the ECU to send in a little more fuel. This mod gives a minor increase in power and better throttle response. It does not effect fuel economy but it can increase emissions. It's a simple reversible procedure. The AFM's door is held shut by spring pressure. We can reduce that spring pressure which will cause the door to open farther for a given amount of air volume. This will cause the AFM to signal the ECU for a little extra fuel. The procedure is simple. With the cover off look at the workings of the AFM and find the large wire shaped like a "W" and secured with a little bolt. That wire secures a gear and keeps the gear from turning. Mark the gear where it is secured by the wire (that's where my screwdriver is touching it in the photo below). Try to make the mark with a sharp knife so it will not wear off. Now hold the gear still and loosen the bolt securing the "W" shaped wire. Once the wire is free of the gear's teeth rotate the gear counter clockwise five or six teeth and secure it in that position by bolting the "W" shaped wire back into place. That's it! put the cover back on, secure it with silicone and you are done with the AFM."""
Thats how you clock the air flow meter wink wink