The Stovebolt Site Forums The Shop Area Paint and Body Shop paint the recessed letters

Use lacquer. spray so the letters are painted, let it dry completely and then take a cotton rag, wet it with lacquer thinner and carefully wash off the overspray. That's how I did THIS. Ignore the gasket, this is not final assembly.

You can also use enamel but you have to wash off the overspray before the paint sits too long.