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Old 06-20-2004, 07:40 AM   #1
fAt2Rak005
CF Newbie
 
Join Date: Jun 2004
Location: california (bay area)
Posts: 15
how do i adjust the fuel air mixture?

i have a 74 chevy nova with a v8 350cu.in. 4bbl rochester, i think its called a quadrajet (sp?) i know where the two screws are to adjust. one day i was trying to find how to adjust the idle, and i messed with the driverside screw of the air fuel mixture. i didnt hear or feel anything change so i tried to put the screw back to where it was before i touched it. but i dont think i did it right. after that i found out how to adjust my idle. about a month ago, i noticed that a few of my sparkplugs were black and the're pretty new (less than a thousand miles) so i believe my mixture is too rich. i have the hayne's rebuild book on my car and it briefly tells me how to adjust the mixture but i dont understand it. thats about it.
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