I have some history on this car as my brother Dave and I use to own it. It was indeed a RO23 original car and was purchased new by Frank Marcusic and was an original 4-speed car he raced in SS/D then he put a tunnel ram on it cut out the rear wheel wells so he run 14-32 slicks and went to AM/P class, after that he sold the car and Dave Miller bought it,fixed the rear quarters put an automatic in it and ran SS/DA with it,then when he quit racing it the was bought by Sam Brooks who I was very good friends with, my brother Dave and I traded an original 63 Max Wedge Savoy for the 67 to Sam, we never raced it and eventually traded it back to Sam for another car, yes this car was originally white and it used to sit at the Sinclair/Arco station at Oakland Park & Indianola that my dad use to own and us brothers all worked there, there were always a lot of bad Mopars there besides our own.
This is just my worth.