Lou55:

I used Brodak Fuel proof Dope. I did it because when you look at the plane from the front I didn't like the fact that the light color of the fiberglass kind of stood out. Painting it black made the inside of the cowl disappear. PLUS I had some left over after painting the inside of the cockpits. If you take a look at the last picture in my post you can see the color of the inside of the cowl. After looking at the picture is when I decided to paint the inside black.

Ed