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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