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Old 11-23-2007, 01:08 AM   #1
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How do I Adjust from not running too rich
I have a 4 brrl Holly carb I believe, I was told there is 2? switches where u can adjust from running to rich, I'm trying to adjust to pass emissions, please advise, Thanks
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Old 11-23-2007, 01:11 AM   #2
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Re: How do I Adjust from not running too rich
When are you running rich, at idle or at cruise?
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Old 11-23-2007, 11:12 AM   #3
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Re: How do I Adjust from not running too rich
Im running too rich at idle, Im not sure how to adjust, I need help for I can pass these stupid emissions
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Old 11-23-2007, 12:30 PM   #4
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Re: How do I Adjust from not running too rich
The idle mixture screws on the base of the carb will set the idle mixture. Don't just blindly start twisting them to try to lean it out. Get a vacuum gauge and do it properly.
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Old 11-23-2007, 02:41 PM   #5
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Quote:
Originally Posted by tigercyberslash View Post
I have a 4 brrl Holly carb I believe...
I believe we'd have to know exactly which carb you have. The location of the idle mixture screws is different on Holleys than on q-jets or Edelbrocks.
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Old 11-23-2007, 02:41 PM
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Reload this Page How do I Adjust from not running too rich
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