Mark, Is it possible that your manifold heat riser valve on your right exhaust manifold is stuck closed? That would direct a lot of heat up to your intake manifold. Regards, Mark -----Original Message----- From: Mark Lindahl <mplindahl@xxxxxxxxxxxxx> To: chrysler300@xxxxxxxxxxxxxxx Sent: Thu, Jun 18, 2009 7:45 pm Subject: Re: [Chrysler300] Electric Fuel Pump -'63 300 Hi All, I found that the metal fuel filter was getting hot next to the hot air cleaner. Perhaps the plastic ones may work better? This caused (in theory) the gas to expand and I watched gas pouring into the carb, after the engine was shut off and very hot. When the fuel hit the throttle plates, it was boiling and causing a major smell of gas. I removed the fuel filter and the problem mostly went away. Is it OK to relocate the fuel filter in the rubber hose, just before the fuel pump? I can hear the fuel in the bowl bubbling away, just like an old coffee maker, and this is also part of the problem. Also, when I added the AFB 3256 and new intake manifold, I removed the 'insulation blanket' in the intake well. I thought that this insulation may actually hurt the initial warm up of the engine vs. keeping the carb cooler when the engine is hot. Has anyone ever stuffed household insulation under a 4 bbl manifold to keep the heat off the carb? This was my latest idea, but maybe the 'factory insulation blanket' may do a better job? Let me know your comments. Thanks, Mark Lindahl '63 300 Conv. P.S. With the fuel filter removed, the engine still is gasping for fuel during idle, but only after the fuel seems to boil away. After a few minutes of driving, the engine/carb runs fine at idle and at high speed. [Non-text portions of this message have been removed] ------------------------------------ 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 For archives go to http://www.forwardlook.net/300-archive/Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto:Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> 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/