My New 1974 RARE Duster Twister 318 Factory 4 Speed

Guys,
I have been around the mopar cars for awhile and just bought this gem off CL.

I have never seen or heard about a factory D21 4speed 318/2 barrel ever before and a Twister to boot.

I have seen factory 3 speed cars or autos but never a 4 speed anyone else ever seen or heard about one?

It has manual brakes/steering factory Am radio/White interior and Buckets non console white vinyl top and is a one owner car.

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As a matter of fact i have one, but sadly it is a parts car only. (Very rusty.)
It was a 318 2 barrel, D21 4 speed, 2:94 non sure grip 8 1/4 rear.
I used several parts from it on my Dart Sport project.
I'll see if i can find the fender tag and post a picture of it, i don't think it's a Twister though, there is no evidence of the stripes being on it.
Cool car you have there, it would have a regular A 833 4 speed in it, overdrive ones first came out in '75.