Hi All; You also need to keep in mind that they must be balanced. Hard to do without the tool. John Lazenby sells this tool, I believe. It sits on top of the carb and measures the air flow down the throat of the carb. You adjust until both carbs read the same, by moving from one to the other and back, making small adjustments as you go. You can contact him for this and other needs at: john@xxxxxxxxx He may respond to this with more info, but dosen't like to toot his own business horn. Regards, Ray From: "Fern Rivard" <crc@xxxxxxxxxxxxxxx> Date: Sun, 27 Nov 2005 11:45:02 -0700 To: "Marilyn James" <jmrmfj@xxxxxxxxxxxxx>, "300 Club" <chrysler300@xxxxxxxxxxxxxxx> Subject: Re: [Chrysler300] Carter AFB Carburetors Jim: Those 2 large large brass looking (one on each carb) are used to set the idle. Remember that both carbs are used for idling on that cross ram set up. I believe that this information is in the special addendum which is specific to the 300G. It is service bulletin No 61-10 and issued on sept 29/1960. Fern ----- Original Message ----- From: "Marilyn James" <jmrmfj@xxxxxxxxxxxxx> To: "300 Club" <chrysler300@xxxxxxxxxxxxxxx> Sent: Sunday, November 27, 2005 11:08 AM Subject: [Chrysler300] Carter AFB Carburetors > Hello 300 group, > I'd like to thank everyone answered my electronic ignition question. > Now I have another problem with my 1961 G AFB carburetors. After > rebuilding them they are running rich. I want to ask about the big > adjustment screw in the middle of the 2 idle mixture screws, what is > it called and what it does? My service manuals do not show this > adjustment screw. Also I would like to know has anyone used Edelbrock > carbs on the long rams? I realize I'm going to get mail from the 300 > purists about not changing these carbs, but it would be another > alternative. I guess I'm having trouble getting away from my street > rod background. > Thanks ahead for your replies, Jim > > [Non-text portions of this message have been removed] > > > > ------------------------ Yahoo! Groups > > 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! 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