2 types of Doug headers for early 64 to 66 Valiants ??

You can't always go by the photos. I'd call CI and ask them what the manufacturer's part number is for the ones they list. I'd bet they're the exact same headers. To my knowledge, Doug's only sells one set of headers for early A's, but there are variations depending on the coating. If it's black, there's only one - D450B. I could be wrong though.