Carter Carb?
Thread Starter
Racer
Joined: Apr 2005
Posts: 365
Likes: 1
From: UK without vette :(
Carter Carb?
I need to be educated a bit about my carb. It is stamped Mfg by Carter Carb for GMC, most of my manuals seem to call the carb's Rochester or Holley.
Is Rochester the same company as Carter or are they two different companies that just made Q-jets? Is there any difference between a Carter Q-jet and a Rochester Q-jet? Thanks.
Is Rochester the same company as Carter or are they two different companies that just made Q-jets? Is there any difference between a Carter Q-jet and a Rochester Q-jet? Thanks.
Drifting
Joined: Jun 2003
Posts: 1,455
Likes: 5
From: Upstate South Carolina
Your car should have a Rochester Q jet. Carter, a seperate company, manufactured some Rochester Q jets for Chevrolet. The carbs had mfg by carter stamped on them. What year is your car? What's the model number on your carb?
Drifting
Joined: May 2003
Posts: 1,634
Likes: 2
From: Melbourne, Victoria, Australia, the World
My 68 Bonnie has a Q-jet manufactured by Carter. It is the original carb.
Obviously Rochester did not have the capacity to make all the carbs required by GM so they contracted Carter to make them as well. Can't tell you the time lines of production but definitely 68 had them.
Obviously Rochester did not have the capacity to make all the carbs required by GM so they contracted Carter to make them as well. Can't tell you the time lines of production but definitely 68 had them.
Thread Starter
Racer
Joined: Apr 2005
Posts: 365
Likes: 1
From: UK without vette :(
I bought the 73 about a year ago and the previous owner gave me the original carb (in a box) which is a Rochester Q-Jet No's: 7043203 FT 1353.
The one in the car now is the Carter Q-Jet No: 7043202 E3 FS
I was planning on next month taking the car to a performance shop to get it put on a dyno and have it tuned and didn't know which carb would be better on the car.
Any further details you can give me regarding these two carbs would be appreciated.
The one in the car now is the Carter Q-Jet No: 7043202 E3 FS
I was planning on next month taking the car to a performance shop to get it put on a dyno and have it tuned and didn't know which carb would be better on the car.
Any further details you can give me regarding these two carbs would be appreciated.
Thread Starter
Racer
Joined: Apr 2005
Posts: 365
Likes: 1
From: UK without vette :(
Well it looks like my setup in the car right now has a carb that is for an auto in my 73 w/ a manual trans. Is that an issue? 
Last edited by vabeachvette; Jan 2, 2006 at 06:46 PM.
Tech Contributor
Joined: Aug 1999
Posts: 14,373
Likes: 6,371
From: At my Bar drinking and wrenching in Lafayette Colorado
Q-Jets were manufactured by Carter under license from Rochester. It is not uncommon to have a Carter-built Q-Jet, and it is identical to the Rochester carb.
The only difference between an "automatic" carb and a "manual" carb is that the automatic carbs often will have a provision for a vacuum modulator line, and the automatic carbs often have an attach point on the throttle lever for the kickdown linkage. There is no performance or functional difference in the carbs.
The only difference between an "automatic" carb and a "manual" carb is that the automatic carbs often will have a provision for a vacuum modulator line, and the automatic carbs often have an attach point on the throttle lever for the kickdown linkage. There is no performance or functional difference in the carbs.
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Safety Car
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From: Jersey Shore Exit 98
Originally Posted by bobs77vet
my 77 had a Q-jet made by Carter on it....
