1920 takes a few different kits
The fuel height changed over the years to lean out the carb with a lower float level
Application Carburetor LIST Number
American Motors 1965-64 199″ 3.2L, 232″ 3.8L Chrysler 225″ Ind. Dodge 1973-60 170″ 2.8L, 198″ 3.2L, 225″ 3.7L (Inc Repl Carbs) Dodge Truck 1971-65 170″ 2.8L, 198″ 3.2L, 225″ 3.7L Plymouth 1973-60 170″ 2.8L, 198″ 3.2L, 225″ 3.7L (Inc Canada) (Inc Repl Carbs)
2136, 2303, 2416, 2417, 2418, 2419, 2500, 2533, 2534, 2535, 2536, 2537, 2765, 2766, 2767, 2768, 2769, 2770, 2885, 2886, 2887, 2888, 2889, 2890, 2918, 2997, 2998, 2999, 3053, 3054, 3057, 3058, 3059, 3060, 3152, 3225, 3226, 3227, 3228, 3229, 3271, 3272, 3273, 3274, 3275, 3276, 3277, 3278, 3279, 3280, 3281, 3282, 3397, 3398, 3399, 3446, 3671, 3672, 3673, 3674, 3919, 3920, 3921, 3922, 3924, 3982, 3983, 3984, 3985, 4012, 4013, 4351, 4352, 4353, 4354, 4355, 4356, 4357, 4358, 4359, 4361, 4362, 4363, 4414, 4416, 4641, 4642, 4655, 4656, 4657, 4658, 4659, 4712, 4750, 4751, 4755, 4756, 6159, 6202,
6260, 6482, 6483, 6876, 7249, 7250, 7583, 7584, 7587, 7747, 8213, 8311, 8388, 8400, 8401, 8404
Holley 1920 Carburetor Repair Kit w/Flat Shaft K458
Holley 1920 Carburetor Rebuild Kit K458