Just saw your Road Runner pic; just beautiful! I've been an old Mopar fan for years. I bought a new 73 Satellite Sebring Plus back then when I couldn't find a Road Runner I liked. Had a few more amenities over the RR, but very similar engine setup. Had the 400 where some of the RR's I looked at had the 360. Turns out that stock, they all had less hp than a great old 68 Belvedere I had with a 273...!!
It looks like the pic was from an "All Mopar Show", and I guess it's a very "sweet" 440 with a lovely dual quad setup. I suppose it would give poor Wile E. a run for his money!