49 State Breather ***'y

As a side note :
I recently saw a 1971 Duster without an ECS Canister . It's a Los Angeles-built car , original California-spec build (L.A. built for the southwest primarily ) , original-issue blue/gold Ca plates ; built in Sept '70 .

225 / 904 combo . 2-outlet breather ; one line to the fuel tank , and one to the air cleaner base . No signs of ever having an ECS canister .

It appears that the application of the ECS in Ca-destined cars was almost arbitrary ! To wit :

- 1970 'Cuda 340 . Los Angeles build ; 727 trans ; standard hood . Sept '69 build . Original , non-preheat air cleaner ; no exhaust tips (N85 Noise Reduction Pkg) . Equipped with ECS .

- 1970 Swinger 340 . Original owner since day 1 . Untouched engine
( other than an MSD breakerless ignition conversion in '75 ) .
4 speed . Dec '69 build .
Same air cleaner as the previously mentioned '70 340 'Cuda ; however , it had factory-installed hood scoops with the cutouts opened .
No ECS canister !

I guess it depended upon :
- Carburetor ( single 4 Bbl , 3 Two Bbl or Two 4 Bbl AFB's )
- Air Induction ( "closed" hood vs. "Shaker" or "Air Grabber" )
- County in which the vehicle was sold new ( certain counties in Ca were exempt from Noise Reduction Packages as well as I/M Emissions Testing . This would explain how some Ca-spec cars had both "N95" as well as "N42" .