One of the symptoms of a lean mixture is backfiring through the carb. Check to see that the carb hold down nuts are secure and check for elsewhere for an intake vacuum leak, vacuum hoses, etc. Joe ----- Original Message ---- From: Eddie Stakes <eddiestakes@xxxxxxxxxxxxxxxxxxxx> To: amc-list@xxxxxxxxxxxx; baadassGremlins@xxxxxxxxxxxxxxx Sent: Sun, September 11, 2011 7:16:27 AM Subject: [AMC-list] amc 258-6 backfiring thru carb Yesterday my wife's 258-6 Eagle started backfiring thru carb. Popping noise. Still runs, but rough, and pop noise. I am sort of stumped on this and have read a variety of answers all over place but carb jets appear to be clean, distributor cap fine although will replace it, have not checked vacuum advance nor timing yet. Any advise appreciated, just reply here & thanks in advance to all who might reply. Eddie Stakes 713.464.8825 eddiestakes@xxxxxxxxxxxxxxxxxxxx www.planethoustonamx.com _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com