72 Duster twister with the 275 horse 340 engine?

Nothing in that link says ANYTHING about that car having a twister package, WITH a 340. Read what the OP is about.

I read this:

The Duster seen here is Gary's second, a near-exact replacement that remains in its original, unrestored state, right down to the original tires. It's just as the day he drove it off the lot of Auburn, New York's Howard Chrysler Plymouth in 1972.

and I see a Twister hood treatment and a Twister-icon on the quarters...