This is where it gets interesting with '71 Challengers.
Unlike Barracudas, there was no 'Cuda type (R/T) option available on the ragtops, so the largest engine available for order was the N-code 383 4bbl.
Now it seems that there are more 383 ragtops out there (2 & 4bbl) than there are 340s, so unlike in a hardtop, the small-blocks often pull a higher price.
Plus the 340 was only ever offered as a performance engine whereas the 383s were in everything.
4-speed trumps automatic
non A/C trumps A/C
high-impact colour trumps others
Knowing this car very well, I would have to say that it is one of, if not the finest '71 Challenger ragtop of its kind. And it is unquestionably 100% numbers matching. One could not buy another '71 340 ragtop in the current market and restore it to the same standard for less...
If I weren't busy with some other purple Challengers ('71 and '13) then I'd probably make the owner a serious offer for the car - it's that good.