This is in reguard to my last post "#12293 Carter 3505s carbs" I answered my own question by finding this chart on the web....... Carter Carb Info by Dan Jones To determine Carter AFB carb flow, measure the butterfly bores and use the table below: CFM Venturi Diameter Bore Diameter primary secondary primary secondary -------------------------------------------------------- 400 1 1/8 1 1/4 1 7/16 1 7/16 500 1 3/16 1 1/4 1 7/16 1 11/16 575 1 1/4 1 9/16 1 9/16 1 11/16 625 1 3/16 1 9/16 1 7/16 1 11/16 750 1 7/16 1 9/16 1 11/16 1 11/16 9000 Series AFB Code Deciphering Base part number is 9000 and the last three digits refer to flow rating. For example, 9625 is a 625 CFM AFB carb. Adding 0, 9625 means it was set up for a Chevy style linkage, adding 1, 9626, means it is a 625 for a Chrysler, adding 2, 9627, means it is for Ford; adding 10, 9635, means provision for EGR. If the carb is an aftermarket version, it will have a 9xxx cast in the front near where the mounting stud goes through. _____________________________________________________________________ The 3505s has venturi: 1 3/16 prim. 1 9/16 sec. bore: 1 7/16 prim. 1 11/16 sec. According to the chart the 3505s is 625cfm I hope this chart will help anyone else looking for AFB information. Ray 300K To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/