Carter AVS for sale Nice!

68-69 340 or 383 engine used the 1 7/16 primary.Then in 71' for sure the 440 did as well on the 4966s LP carb. Some 70's did too. without the top vent, it is likely a pre-70. With the horizontal air fuel screws, it is likely a 69'. 68's had the screws at a 45 degree angle.