Cowl Water Issue

My 67 sits out in the pouring rain and gets a little water inside the vent box but not enough to drip out the vent door.
A stream from a hose isn't the same condition as rain.
Back when I worked at the Ford dealership a fellow service tech had a similar complaint from a T-bird owner.
The soluion that satisfied that customer was handmade dome shaped screens over the vents. That screen caught 95 % of the droplets and wicked them down to the outside the opening.