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.

changing carbs

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Old Jan 7, 2006 | 06:41 AM
  #1  
pontiacsteve's Avatar
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From: mid missouri
Car: 82 z28
Engine: 350
Transmission: auto th350
Axle/Gears: stock
changing carbs

What has to be done to change from a stock CC q-jet to say a 600 Holley? The real question is what do you do with the wiring and can you get away from the ECM? I think I have some wiring issues and I am just looking at options.For people with my knowledge about cars keep it simple is best.
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Old Jan 7, 2006 | 05:12 PM
  #2  
F-BIRD'88's Avatar
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Joined: Sep 2001
Posts: 6,111
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From: Ontario, Canada
Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
Fix the wiring.
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Old Jan 7, 2006 | 07:00 PM
  #3  
pontiacsteve's Avatar
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Joined: Nov 2005
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From: mid missouri
Car: 82 z28
Engine: 350
Transmission: auto th350
Axle/Gears: stock
That may or may not be an option but I wanted to know what to do with the TPS and ECM solenoid wiring if I decide to go with a different carb.
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Old Jan 7, 2006 | 07:35 PM
  #4  
Sonix's Avatar
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
chop 'em. Cut the TPS/MC wires where you can't see them.
You will need an older style non-cc distributor to match it, either one from the JY, or a new one, take your pick.
Then pull the check engine light bulb.

This question is asked so commonly, a thread like this should be stickied.

In short, your stock CC-carb is good, not a performance hindrance, and will get better mileage generally. So don't drop it as a performance upgrade. However, if you've got a nasty mess of screwed up wiring (one of my reasons for ditching CC), then give'r.
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Old Jan 7, 2006 | 08:47 PM
  #5  
pontiacsteve's Avatar
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Joined: Nov 2005
Posts: 94
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From: mid missouri
Car: 82 z28
Engine: 350
Transmission: auto th350
Axle/Gears: stock
thanks so much. My car was totaled out in a wreck and has a salvage title so it will never be a show car probably. I bought it for a hobby project and not a lot of money. I have done a lot of work on it and as you can see by my posts, I have encountered a lot of electrical problems, As I get one problem solved something else crops up. I am not sure what I will do but at least I have options.
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