1969 340 barracuda non formula S?
I think you made a great swap!
The pics in post#1 and #17 look like R4 red. The black stripe and black top make it look more orange.
R4 is a unique color - my original '69 340 Swinger was R4 "Charger" red and the white bumblebee stripe made it look "redder" than the same color on your 'cuda.
My Dart was also a column shift with an non-suregrip 3.23 rear, but it ran 14.28 at 98+ mph without headers and trophied regularly in G/Pure Stock at OCIR here in SoCal back in the very early '70s. I loved to pick on big-block cars on the street.
Again, great swap!