Hi Everyone, After the typical snowball effect that seems to happen on every project, (new carpet->floor pan rust->leaking heater core->blown A/C compressor->rat ate A/C wiring->etc.), I gave up on the factory A/C system and am installing a Vintage Air system. So far it has been pretty straightforward and painless. However, it doesn't have a need for external air. (It removes the passenger kick panel vent and blocks it off with a panel for routing the A/C & heater hoses. I believe that is the only outside air vent.) With all of the vacuum controls removed, there is nothing to control the cowl vent flap. (The one that is normally open and closes on max A/C.) So I'm wondering what I should do with it. My initial thoughts are to close it and leave it that way. Seems like it would reduce the chances of water coming in and the rust that follows. What do you think? Thanks!