I'm by no means an E-body expert, but the '70 Chally that's burned into my memory - I was trying to figure out how to buy it off the Dodge dealer's lot in Van Nuys, CA - was a light green 340, dual-scoop hood with 340Fourbarrel nameplates, no V8 badges, Bee decals in the quarter windows, E60-15s on Rallyes, no wheel-opening mldgs. I was struck by how it appeared to be a detrimmed R/T with a small-block, why it wasn't an R/T, and the detail differences. I'm thinking it was soon after the Chally came out, just turning to fall, and I hadn't seen a T/A yet. I'm not as positive about the grille color, though.