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

stand alone carb?

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Old Oct 28, 2005 | 12:50 AM
  #1  
PhantomFE3's Avatar
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From: Bemidji, MN
Car: 1984 Z28
Engine: 350
Transmission: TCI Streetfighter TH350
Axle/Gears: 4th gen 3.42
stand alone carb?

are there carbs out there that you can just bolt on to the motor and go? like the only thing youd have to hook up is the throttle?


im putting a v8 in my sonoma just for something to do and its TBI and it would be easier to have a carb, any suggestions?
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Old Oct 28, 2005 | 12:56 AM
  #2  
Apeiron's Avatar
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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
Bolt on and go as opposed to what?
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Old Oct 28, 2005 | 01:17 PM
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Damon's Avatar
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From: Philly, PA
Something that all your TBI hoses/fittings/cables and stuff will bolt onto? Doesn't exist. Always gotta do some tweaking and re-routing when converting from TBI, not to mention needing to use an external fuel pressure regulator to bring fuel pressure down to a carb-friendly level.
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Old Oct 28, 2005 | 04:17 PM
  #4  
PhantomFE3's Avatar
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From: Bemidji, MN
Car: 1984 Z28
Engine: 350
Transmission: TCI Streetfighter TH350
Axle/Gears: 4th gen 3.42
read the title.. stand alone, that means you have a motor with a carb on it, the only thing hooked up to the carb is the throttle cable, thats it.
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Old Oct 28, 2005 | 04:45 PM
  #5  
Apeiron's Avatar
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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
Most carburetors work better when connected to a source of fuel as well.

If you're converting from TBI, you'll need to lower the fuel pressure, as mentioned. You'll also need a new distributor and intake manifold.

Last edited by Apeiron; Oct 28, 2005 at 04:48 PM.
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Old Oct 28, 2005 | 06:58 PM
  #6  
chesterfield's Avatar
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From: California
Car: Pontiac
you may want a choke and a way to open it.

Last edited by chesterfield; Oct 28, 2005 at 07:23 PM.
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Old Oct 28, 2005 | 07:39 PM
  #7  
demonband2000's Avatar
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Holley carb on my 305

Throttle cable
Gas line
PVC valve
and I think vacuum advance

I guess if you really wanted to - you could run the pcv valve and all vacuume lines off the intake, and just have throttle cable and gas line.

Last edited by demonband2000; Oct 28, 2005 at 07:42 PM.
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Old Oct 28, 2005 | 07:56 PM
  #8  
Apeiron's Avatar
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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
The PCV needs to be to the carb. Connecting it to the manifold vacuum port will lean out the cylinder the port is on.
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Old Oct 29, 2005 | 05:21 PM
  #9  
Zedsled's Avatar
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From: Russell,Ontario,Canada
Car: 84 Z28
Engine: Modded 350ci.
Transmission: T-56
your question is rather vague...I'm not sure what you mean by a "stand alone carb" but you can get a mechanical secondary and manual choke carbs.
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Old Oct 29, 2005 | 06:23 PM
  #10  
PhantomFE3's Avatar
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From: Bemidji, MN
Car: 1984 Z28
Engine: 350
Transmission: TCI Streetfighter TH350
Axle/Gears: 4th gen 3.42
i meant compared to all the electronic hook ups that you have to hook up on a stock quadrajet
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Old Oct 29, 2005 | 06:31 PM
  #11  
Apeiron's Avatar
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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
In that case, every carb except the stock computer-controlled one is "stand alone".
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