According to JM, the top of dash and firewall are both 30% gloss. It doesn't say what the face of dash is. He lists rattle can Krylon semi-flat black #1613 as close to 30% gloss. Rustoleum satin black #7777 is close to 40-45 % gloss. Maybe that would work for the face of dash, I know mine looks glossier than the top. In the 70's I painted my dash and the Chevy dealer said it was a satin black.