Dart 340 twin hood scoops

You are generally right, but I sold several 71 Duster with the scoops
ordered from the factory when they were new.

Several Stock Eliminator Dusters still currently run them.

Twisters Yes

340's, no. Lots of them got scoops installed at the dealership level.

NHRA probably allows them on any 71-72 car because the twisters got the scoops. Are they correct, nope. I'd like to find a 71-72 340 Duster with an original fender tag or broadcast sheet that has J54 on it. Never seen one. Seen plenty of repro's that have the number, no originals.

Have a good holiday.