Were all 428 Cobra Jet Mustangs equipped with automatic choke carburetors?

While it's true that most 428 CJ carburetors used an automatic choke, the 1970 carburetors used a manual, cable-activated choke. These carbs can be identified by casting numbers D0ZF-9510-AA (4-speed without air conditioning), D0ZF-9510-AB (automatic without air conditioning), D0ZF-9510-AC (4-speed with air conditioning), and D0ZF-9510-AD (automatic with air conditioning).