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Old Jan 1, 2005 | 05:34 PM
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79bronco300-6's Avatar
79bronco300-6
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idle problem

i have a 79 bronco, 300 I-6, fresh rebuild, offy 4bbl intake, 600 cfm edelbrock carb, about 100 miles on it, it ran fine, but lacked alot of bottom end, and poped back through the exhaust, i bumped the timing up some, got rid of the pop back and gave it alot more bottom end. but now it wont sit there and idle, i have to keep giving it gas to keep it running, if it dies it will fire right back up but its annoying and shouldnt be happening. i played with the idel screw and to keep it running i would have to have the idle set at 1500-1600 rpm. any ideas?
 
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Old Jan 1, 2005 | 05:49 PM
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yozsi
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From: Vallejo, CA
sounds like its running too rich. maybe overcarbed
 
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Old Jan 1, 2005 | 06:07 PM
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79bronco300-6
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Originally Posted by yozsi
sounds like its running too rich. maybe overcarbed
i dont think so, drives fine, no stumble, no hessitation, ive gone through and tuned the carb to the motor. its only in its idle, which by the time i have the idle screw where it has the motor idleing at 1500 rpms its out of the idle circuit of the carb. ive messed with the idle mixture screws and set them where they are suppose to be. it idled fine before i adjusted the timing, now it doesnt want to idle.
 
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Old Jan 2, 2005 | 09:16 PM
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anyone else?
 
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