Don't overlook ebay as a source for carbs. However, it is hard to do better than Stovebolt's rebuilt 5200 for $65. As a point of interest, the 5200 is a weber DFA built by Holley under a royalty agreement with Weber. The carb was used on Fords (4's & v6's - 2000cc - 2600cc), as well as Chrysler and Chevy 4's. It is progressive and came in 3 versions. A 26/27 at 270 cfm (Stovebolt), a 23/27 at 235 cfm, and a 23/29 at 245 cfm. The Weber 32/36, sold by Clifford and many others on ebay, flows 320 cfm. This a progressive carb and might make a good upgrade from the 26/27 for a more modified engine. The Weber 38/38, readily available on ebay, is not progressive (both bbls open at the same rate), and flows 350 cfm. I don't have any experience with the Motorcraft (2100) or the Holley 2300 but they have good reputations. Neither is progressive and they are available in flows from 280 cfm to 500 cfm. The motorcraft 1.08 is the 280 cfm carb. Personally, I like the Holley-Weber, Weber series. You can by them NEW. Parts and pieces are easy to get (jets, floats, etc), and they all fit on the same Clifford adapter. Also, I like the progressive carb as it is stronger at the bottom end of the rpm range, provides better mileage , and has all the cfm you need at the top end (a 200 I6 can't use more than 250 cfm at 5000 rpm assumong 80% efficiency).
