Do you mean is there a difference between a 3310-1 compared to a , 3310-2 ,-3,-4 or - higher? Yes, the 3310-1 is a model 4150 while later -# were a 4160. The-1's had replaceable secondary jet like a double pumpers while later carbs used a secondary metering plate. The -1's haven't been made in decades. If you find one it will be in a swap meet or garage sell and it's likely to be in poor shape.
Later dash #'s can be converted to replacable secondary jets.