That’s EXACTLY the year (1970) and color of my Challenger, only I put red and blue racing stripes on it. Didn’t have the big engine though, only a 318 with an automatic. Wish I still had it obviously. Traded it in on a GREMLIN after I had problems with burnt/sticking valves. (The Gremlin got over 200K miles on it before I got rid of it though - a LOT of miles in those days).