1966 Barracuda auxiliary vent window weatherstrip install

Good Luck! Those are leaker/whistlers from the start. That foam rubber weatherstrip is just glued into place. I think only one hole lines up with a screw head. The rest of the heads are just covered over. Those big rectangle holes don't get covered completely. On the ones I have, the weatherstrip runs along the inner edge of the holes. It still leaves a gap of 1/8" or so on the outside of the hole.