I got my race hemi orange from Roger Gibson. It is PPG shop line Enamel. I wanted to put DP epoxy primer on my engine before painting it , but they said not to because it might effect the paint color. I don't really like the idea of painting over a raw engine, just my thoughts that might not properly stick. So looking back I wish that I had just went ahead and put the epoxy primer down and painted it, but we shall see how it holds up.
Matt