1972 Duster Twister?

[72Leaningtower]

I was recently asked if my 1972 Duster was a Twister. It has a 225 /6 and the hood mounted scoops. Has the standard grill but appears to possibly have been changed at some point in time. The fender tag is missing and I have had no luck finding a build sheet. Is there any way to tell for sure without a fender tag or build sheet?

 

[Locomotion]

In 1971, it was an appearance package making it difficult to tell apart. I'm pretty sure it carried over to '72 but I'm not familiar with the details. But it very well could have the sharktooth grille and other 340 "appearance" options from the factory if it's a Twister.

http://www.lhmopars.com/MOPAR_Ads/1971_Plymouth_Duster_ad.jpg