273 4bbl setup

3615s is from a 413 Chrysler automatic trans. I know it will bolt on but, as the guys above have mentioned, check it to make sure the throttle blades will open. The 273 carb also has a velocity valve on the secondaries to keep it from bogging and is jetted perfectly for a 273. The 3615s might be too rich. As for the choke, they also used them on four barrel marine engines also from 64-67 AFB carbs?