Here is some flow data for the Autolite carbs. The venturi size is cast onto the main body, just behind the throttle linkage, making identification easy. Good luck.
This information comes from CJOFFROAD.COM. That website has a ton of information on these carbs.
2V 2100/2150 at 3"Hg. Venturi size listed first.
0.98 = 190 CFM
1.01 = 240 CFM
1.02 = 245 CFM
1.08 = 287 CFM
1.14 = 300 CFM
1.21 = 351 CFM
1.23 = 356 CFM
1.33 = 424 CFM
When comparing to 'metric' carburetors, remember that venturi size is not the same as bore size. For example, a Weber 32/26 has venturies of 26mm/27mm.
