Where direction/route should the front cowl water drain on a '65 Barracuda?

The drains are on both sides of the lower cowl. They could be plugged from debris. The windshield could leak,
the heater core could leak. The W/W pivot gaskets could leak. There could be rust thru in lower cowl. Gasket
on fresh air box could leak. I would remove fenders as well. With them off, drain clogging will be revealed. There
could also be rust thru where the upper and lower cowls come together under the rear fender attachment area.
Detective work required.