To shave or not to shave that is the question

by sealing the cowl vent will stop any fresh air coming in SO then you wouldn't need the inside vents.or have I misunderstood..........Artie

You are correct that was my thanking . Seal the cowl vent remove the drivers vent from inside the car. Or leave it open and try to put a drivers side vent on passenger side . You know the drivers side has that little vent door that you open for fresh air and if it has never been cleaned you open it going down the road and get a face full of leaves and dirt lmao