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Reload this Page Cant control Idle

Carburetors Carb discussion and questions. Upgrading a Third Gen carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

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Old 06-05-2007, 10:02 PM   #1
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Car: 82 Z28
Engine: SBC 350
Transmission: 700R4 w/Shift kit

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Cant control Idle
I have a 82 Z28 with a 350 V8 (not the original, its a 78 block). The carb is a Holley Street Avenger 670 w/electric choke. I tried ajusting the idle screw, but it has no effect. I can turn it in almost all the way and it does nothing, and turn it out till it almost falls off and it has no effect. Should I be looking at the fast Idle screw? Im reading on Holleys website, but I need some more help.

Also, it seemed like the choke wouldnt turn off, because the choke light on the dash was on nonstop. But I unpluged the positive and negative wires going to the choke, and the light stayed on, so its probably just broken.
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79 350 SBC block, flat top pistons, 882 heads, Edelbrock intake, Holley 670 Avenger carb, MSD Wires, Headers

3" single pipe>muffler>dual 2.5" exhaust
700R4 w/shift kit
3:73 gears

Commin soon: Lakewood 50/50s and 90/10's, MT ET Streets, Heads?
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Old 06-05-2007, 10:46 PM   #2
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Re: Cant control Idle
Might be to rich also. Check your idle mixture screws.
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Old 06-05-2007, 11:18 PM   #3
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Join Date: Jul 2006
Location: Cadiz,OH
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Car: 86' camaro iroc-z 87' camaro LT
Engine: 5.0 tpi and 5.7 carbed
Transmission: 700r4 and t-5
Axle/Gears: 3.42 posi and 2.43 limited slip

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Re: Cant control Idle
my holley did that i got a stronger return spring to pull it back and touch the idle screw then i adjusted the screw. just go to napa and get the biggest one and bend the ends to fit. hope this helps it worked for me
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