What is the correct carb serial number for an early 1970 383 mag with auto and A/C? Thanks

Holley - 4369 non-N95 (CA emissions)

What's the application? Do you have a broadcast sheet?

no broadcast sheet. Challenger R/T September 69 build. My source says carter 4732. Car was a Georgia car new.

Carters were used on non-HP (blue) 383s in 1970.

All Challenger R/Ts were HP (orange) - A/C or not.

Thank you for the information. Now on to finding one!
Regards

I went through this very same thing with my 12/69 LA built 383 R/T with AC, auto, N95 and no broadcast sheet a couple of years ago here. My research came up with a Holley 4218 though, but mine has CA emissions.
Someone had stuck a Ford AVS on it at some point, but the sure evidence that cinched it was originally a Holley was the way they had butchered the special Holley only fuel line from the fuel pump to make it work with the AVS.

383 manual - E & B-body - with ECS (N95).......... orange HP engine 335hp
---------- Holley R4217-A ----------part number 3418 537 on b'cast 37
383 manual - E & B-body - w/o ECS................... orange HP engine 335hp engine on b'cast 084 wA/C & 087
---------- Holley R4367-A ----------part number 3418 536 on b'cast 36
383 Manual - E & B-body - w/o ECS & with "fresh air" (N96). orange HP engine 335hp
---------- Holley R4736-1A ----------part number 3512 964 on b'cast 64
383 Manual - E & B-body - with ECS (N95) & with "fresh air" (N96). orange HP engine 335hp
---------- Holley R4738-1A ----------part number 3512 974 on b'cast 74

383 automatic - E, C & B-body - w/o A/C & w/o ECS............. blue engine 330hp
---------- Carter 4736S ----------part number 3418 538 on b'cast 38
383 automatic - E, C & B-body - with A/C (H51) & w/o ECS..... blue engine 330hp
---------- Carter 4732S ----------part number 3418 540 on b'cast 40
383 automatic - E, C & B-body - with ECS (N95)................... blue engine 330hp
---------- Carter 4734S ----------part number 3418 541 on b'cast 41

383 automatic - E & B-body - w/o A/C & w/o ECS............... orange HP engine 335hp engine on b'cast 088
---------- Holley R4368-A ----------part number 3418 542 on b'cast 42
383 automatic - E & B-body - w/o A/C & with "fresh air" (N96). orange HP engine 335hp engine on b'cast 088
---------- Holley R4737-1A ----------part number 3512 965 on b'cast 65
383 automatic - E & B-body - with ECS (N95)..................... orange HP engine 335hp
---------- Holley R4218-A ----------part number 3418 543 on b'cast 43
383 automatic - E & B-body - with A/C (H51) & w/o ECS....... orange HP engine 335hp engine on b'cast 089
---------- Holley R4369-A ----------part number 3418 562 on b'cast 62
383 Automatic - E & B-body - with ECS (N95) & with "fresh air" (N96). orange HP engine 335hp
---------- Holley R4739-1A ----------part number 3512 975 on b'cast 75