I have a Carter carb that has been sitting for a while. I was told when I bought it that it was 625 cfm unit. It has an electric choke, and a Mopar type throttle linkage stud. The casting number on the front of the carb is 587 9636SA. The numbers on the throttle plates read: 2-289 for the primaries, and 2-281 for the secondaries. The secondaries are larger in diameter. There does seem to be any play in the throttle shafts. I was told that the carb worked when it was removed from a vehicle. I never used it and it has sat around for a while so it may need new gaskets and internally inspected at the very least. I am not making any promises on this as I never used it. I was thinking $75 or best offer. Shipping will be extra. PM me if interested, or if you want to see it in person (locally). Sorry, but I can't do pic's right now.