I’m going to vote “yes” judging from the heads and exhaust manifolds, HD trans, rear gears and WT block code. But you never know, there are exceptions to every rule. Maybe the PD ordered all that from the options list and started with a base car? No radio? Seems like they ordered all the go fast stuff and no frills. Did all 67s 400s manuals come with both traction bars or just the HOs? I once had a 67 6 cyl 4bbl sprint with a 4sp Muncie and both the bars.