This is the most common problem is Mustangs. I had to remove the cowl in my '65 and weld new cowl vents in place. This is a weekend job considering there are about 175-200 spot weldsto drill out.
The best demonstration of this is found at the following website.www.desertmustangs.com
Have fun!
The best demonstration of this is found at the following website.www.desertmustangs.com
Have fun!