When the cars were new, I saw the 300-Hurst very infrequently, but found a Fury GT on the used car lot at Fenner Tubbs C-P in Lubbock sometime in 1973. Not a 6-bbl car, though.
As to which one I would desire to own, back then, it would have been the 300-Hurst, as I was more oriented toward Chryslers at that time. In present time, I might be more toward the Fury GT, mainly for ease of finding interior parts as needed.
Back then, too, I was more into "road performance" than "drag strip performance". To me, those are two separate customer demographics. The 300-Hurst would be more the former and the GT would be more toward the latter, to me. WHICH means a few incognito "liberties" could be had with the Fury GT and the 300-Hurst! To the Fury GT standard 440 and optional a/c, add a better intake and carb to get 6bbl performance, with a Sanden a/c compressor, plus a good under-car exhaust system. To top it off, a 3.91 rear axle ratio and a TF w/OD for nice cruising.
For the companion Fury S-23 (as an alternative to the Fury GT), a stroker 360 would be operative, with a modern OD automatic and 3.55 rear axle ratio. It would have to look just like a 318, maybe with some 340-ish exhaust manifold (if possible), to which factory dual exhaust would be added. A Performer 318 intake manifold to accept the 1980-style a/c compressor for good measure. OR a 1980 360 4bbl intake with a Street Demon carb (TQ look-alike) on it. Topped off with a factory air cleaner.
As the 300-Hurst is possibly the most valuable, doing it as @Trace300 has done his would be operative. OEM with a few enhancements, built to drive and enjoy, painlessly.
So . . . A + B = BOTH
CBODY67
