Correct air cleaner for '73 340?

[Purple73Cuda]

What is the correct air cleaner for a '73 340 'Cuda? I have a dual snorkle air cleaner that came with the car. Is that correct? For some reason I think that it should be the single snorkel with the flap, shown in the photo. Which is right?
( I know it says "440". I have the exact same air cleaner that says "340").

[Purple73Cuda]

Photo of the one on my car.(Didn't get posted for some reason)!

[Super Blue 72]

As far as I know, it should be a single snorkel air filter housing.

If you have the dual, unless you really want the factory look, I would keep that.  It's better for performance and you can hook up a pseudo "ram air" set up to it with some ducting to the front of the car. 

[quapman]

Single snorkie is correct, but dual is cooler!

[moper]

As I understood it, it's dual snorkel for '70, no snorkel for '71, single snorkel with flapper for '72, and single snorkel solid bottom for 73-4. I'm no resto guy, but that's how I always found it.

[Purple73Cuda]

Thanks everyone. I wasn 't sure of the years of the air cleaners I had. I am going to stick with the dual snorkel air cleaner. I agree it looks cooler and it might breathe a little better than a single snorkle.

[HemiOrange70]

http://www.nicksgarage.com/aircleaner.htm

70 AND 71 had the black unsilenced air cleaner 72 and on had the orange single snorkle with flapper door on the bottom

[Purple73Cuda]

Thanks Hemi orange 70. That link you posted is a great resource!

[Super Blue 72]

That is a great link!  I didn't know the flapper door open at full throttle to let more air in!   

[femtnmax]

My 73 340 duster had single snorkel, but no WOT flapper door.   If you calculate the cross section area of the single snorkel compared to area of all 4 throttle plates for thermoquad carb, the single snorkel is VERY restrictive.  The inlet area of the dual snorkel fixes the area match problem.
I changed to the "old" unsilenced air cleaner for my 340.

[TRIPLE-GREEN]

Single snorkie is correct, but dual is cooler!