I've searched numerous locations including the Holley web site and old car manuals site and have not located my particular Holley List number. I positive the carb is a 2300 but unsure on cfm? Anyway the Binder part number is 421641-C91 Holley List number is - 6206 71 International 1110 345 cubic inch Thanks for any insight. Looking to rebuild or purchase rebuilt carb and just want to be sure i get it right the first time. Parts counter monkeys are worthless. I can post a pic later if that helps.