How do I Adjust from not running too rich
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Joined: Jun 2005
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From: Tacoma, Wa
Car: 1984 Camaro Z28
Engine: V8 350 ci
Transmission: T-5
Axle/Gears: Posi, Disk brakes all the way aroun
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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Joined: Jan 2000
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: How do I Adjust from not running too rich
When are you running rich, at idle or at cruise?
Thread Starter
Member
Joined: Jun 2005
Posts: 278
Likes: 0
From: Tacoma, Wa
Car: 1984 Camaro Z28
Engine: V8 350 ci
Transmission: T-5
Axle/Gears: Posi, Disk brakes all the way aroun
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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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
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.
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
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