72 Duster twister with the 275 horse 340 engine?

The Hemmings article calls it a Duster 340, the car has a Duster 340 decal on the back, and it doesn't claim to have the Twister Package. The whole premise of the Twister and Sizzler was to have a car with the pizzazz of the Duster 340 but with the 198 six or 318 eight for insurance reasons. The only optional engine (at least in 1971) was the 225 six. It is very doubtful that any Twisters came with a 340 from the factory.