Carter AFB 4120S

my 1967 dodge factory manual shows for the 273.
1. AFB - 4294s manual trans
2. pri jet .089,,,,sec jet .073,,,,idle jet #66-.033
3. AFB-4295 auto trans
4. pri jet .089,,,,sec jet .073,,,,,idle jet #66-.033......NOTE; idle jet is NOT removable.
5. both carbs. THROTTLE BORE PRI,,,1-7/16",,,,,SEC,,,,1-9/16"
6. both carbs,,,MAIN VENTURI PRI,,,,,1-1/16".......SEC.....1- 1/4"
7. ACC PUMP ADJUSTMENT. 7/16"
these are the most important specs. i think the spec you listed if a little off is not that big of deal. . i have ran a float level of 5/16 that worked well. but i would not go higher. 7/32 is what is called out.

'







'