Duel snorkell hood
The dual snorkel hood scoops used a pair 4 1/8" holes, same size as the dual hood scoops from the earlier cars, just in a different location. Factory would also have had a couple of rubber gaskets in the holes, they have a tall lip on the topside (~1/4") to prevent water from running into the engine compartment.
Seems like this thread has a bunch of info Dual Snorkle Scoop Information
This is a '73 Dart sport hood
'72 Dart hood from the bottom
The dual snorkel hood scoops used a pair 4 1/8" holes, same size as the dual hood scoops from the earlier cars, just in a different location. Factory would also have had a couple of rubber gaskets in the holes, they have a tall lip on the topside (~1/4") to prevent water from running into the engine compartment.
Seems like this thread has a bunch of info Dual Snorkle Scoop Information
This is a '73 Dart sport hood
'72 Dart hood from the bottom