Oldmanmopar said

It was first offered on a 72 demon. Never on a Duster. The direct connection chassis manual recommends this scoop and the T/A challenger scoop as the best scoop for induction on a Bracket car. That is why you see them being used on different cars.

The 73 Dart Sport was also available with this same scoop. But the under side which unscrews is different then the Demon . This is the scoop that bolts on the Duster or any car with a ribbed hood without modification. The Demon scoop will only fit a flat hood as is.

Many cars back in the day had these scoops installed. Ford's , Chevy,s and other Mopars for a cool forced induction intake charge. It was on the big end where it would start to work but only if it was sealed to the air horn on the carb. Sort of like a low boost at high speed.

There was an article back then on how to seal it with factory mopar parts. using two air breather lids . I did a couple. Now because of the higher intake I just seal a made housing to the hood and use a filtered lid. the aluminum air cleaner housing in the pics. fits tight to the hood. It rubbed some paint off but with steel mounts it works good .

The other way was to mount the another lid to the hood with the center cut out. you would connect it with the trim from the interior in front of the rear door panel. You would seal it with mini van door rubber to the base mounted on the motor when you close the hood . This would allow rubber motor mounts. The white duster is how the engine part was . I don't have a pic of the hood . I do have the article somewhere . It does work on the big end. I ran it with and without it being sealed. There was a ET difference for the better. The faster the car went the more effect it had. Did very little in the 1/8 . But the 1/4 was a different story. Also cruising at High speeds there was a noticeable gain in power.

View attachment 1715155934

View attachment 1715155935

View attachment 1715155936

View attachment 1715155937

Click to expand...