The carb I am looking for is a two barrel that looks very similar to the 2300 but has two throttle shafts that are offset at a 90.That way there is a primary and secondary.I guess the only real difference between the 2300 and 2305 is the baseplate setup, and that the 2305 has annular boosters. I have read that Holley stopped making them but that they show up on ebay once in while. They were only available in 350cfm and 500cfm (like the 2300).I am having about as much luck finding one as I am describing one but basically it is just a "staged" Holley (not Holley/Weber)two barrel Thank you kindly.