Of all the survivor cars that I have seen, I could count the number of 340 Dusters on my hand.
They are just that hard to come by.

This is just an amazing machine. It needs nothing and I'm glad that you actually drive it

I have a 1971 Duster Twister in the GA4 Winchester Grey/Black stripes. Just a 318 car with the 3 speed.
It's the only Twister I have ever seen in that color combo. No options either except for the am radio, twister package, and drip rail moldings.
Yes it's manual steering to. As we say in the south, "aint nothing like manual steering"