I'm not really an aero expert, but I think he probably means that if you have to put a duct opening right here, it should be NACA-style if you want it to both functionally take in good flow and not disrupt airflow over the car at the same time.

Clearly you can't comprehend English so I'll spell it out for you. I didn't ask for a definition, I ask what are you referring to with your pointless comment. Good for you though knowing how to click buttons and paste links. You get a gold star sun shine ;)

We'll its a air intake velocity stack so it's designed to suck air in and since its winter my lines are off. Until last night I just had them blowing air into my wheel well. The rocks, leaves, bugs, sand etc etc was pretty piled up so I know they pull enough air in. I now taped them off on the inside so I keep it clean in there. They work enough for me.

The way I take it. They are talking about the position of your brake ducts. Think they mean that they are position too far to the outside. But if they work, what the helll.

Yes I know. I just wanted him to give reason and not be an *** with a definition. They work so...:happydance: