good carb deal?
Thread Starter
Burning Brakes
Joined: Oct 2011
Posts: 956
Likes: 86
From: McDonough Georgia
good carb deal?
This seems to be a great price for a great carb, and an instant performance increase.
A factory refurbished new carb for the price of a used one is nice.
A little tip, if you offer 10.00 below the asking price they will take it. There were nine of these when I first looked earlier this afternoon. 5 as of this writing.
http://www.ebay.com/itm/281087125711...S:3160&vxp=mtr
A factory refurbished new carb for the price of a used one is nice.
A little tip, if you offer 10.00 below the asking price they will take it. There were nine of these when I first looked earlier this afternoon. 5 as of this writing.
http://www.ebay.com/itm/281087125711...S:3160&vxp=mtr
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
...."performance increase"....
Compared to what? A Quadra-Jet?
Hmmmm.... 670 cfm for the Holley; 750 cfm for the Q-Jet.
Now, in reality, your engine will not even need the 670 cfm that the Holley provides. But, the Q-Jet will regulate itself for whatever the engine needs. What about that Holley???
Compared to what? A Quadra-Jet?
Hmmmm.... 670 cfm for the Holley; 750 cfm for the Q-Jet.
Now, in reality, your engine will not even need the 670 cfm that the Holley provides. But, the Q-Jet will regulate itself for whatever the engine needs. What about that Holley???
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
...."performance increase"....
Compared to what? A Quadra-Jet?
Hmmmm.... 670 cfm for the Holley; 750 cfm for the Q-Jet.
Now, in reality, your engine will not even need the 670 cfm that the Holley provides. But, the Q-Jet will regulate itself for whatever the engine needs. What about that Holley???
Compared to what? A Quadra-Jet?
Hmmmm.... 670 cfm for the Holley; 750 cfm for the Q-Jet.
Now, in reality, your engine will not even need the 670 cfm that the Holley provides. But, the Q-Jet will regulate itself for whatever the engine needs. What about that Holley???
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
...."performance increase"....
Compared to what? A Quadra-Jet?
Hmmmm.... 670 cfm for the Holley; 750 cfm for the Q-Jet.
Now, in reality, your engine will not even need the 670 cfm that the Holley provides. But, the Q-Jet will regulate itself for whatever the engine needs. What about that Holley???
Compared to what? A Quadra-Jet?
Hmmmm.... 670 cfm for the Holley; 750 cfm for the Q-Jet.
Now, in reality, your engine will not even need the 670 cfm that the Holley provides. But, the Q-Jet will regulate itself for whatever the engine needs. What about that Holley???
Lars ran an 1150 Domintor on a warmed over 350ci. That said I would never buy a used carb, how much do you think they pay the guy that rebuilds them, I have rebuilt several Holleys when I was younger and they never seem to run right, I usually put them on Ebay and use the money I get to get a brand new one
Last edited by MotorHead; Apr 5, 2013 at 11:25 PM.
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Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
Team Owner
Joined: Aug 1999
Posts: 30,995
Likes: 99
From: Ontario
Racer
Joined: Jun 2009
Posts: 302
Likes: 2
From: Milton Delaware
I know that this question should not be asked, but I am..... with the QJ what do we expect for mpg running a 350/ auto / 1973. With the 650 Eldebrock I was only getting10-12 mpg and that was Sunday driving. Would be interested in knowing what everyone is getting. Chime in you all! Thanks
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
(I knew the reason, it was just a light-hearted jab at Wayne)
I know that this question should not be asked, but I am..... with the QJ what do we expect for mpg running a 350/ auto / 1973. With the 650 Eldebrock I was only getting10-12 mpg and that was Sunday driving. Would be interested in knowing what everyone is getting. Chime in you all! Thanks
Perhaps by a MPG or two, but not a lot.
Le Mans Master
Joined: Oct 2010
Posts: 6,937
Likes: 848
From: melbourne florida
2023 C3 of the Year Finalist - Modified
back in the gas crises in the 70's i took the stock holley 3310 off my LT-1 and put a good quadrajet on. my mileage did not get better and put the holley back on. throttle opening is throttle opening.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
My '71 SB with Turbo 400 auto got around 15-16 overall mileage with the Q-Jet (properly set up). Once I swapped the 400 out for a 700R4, I'm getting around 20 mpg on the highway. I'm sure city mileage is better too, as lockup is working after 2nd range shifts.
I think a 'healthy' SB with Q-Jet will get around 15 or so. A lockup clutch ('81 I believe) will gain 10%. Overdrive tranny will gain another 20%.
I think a 'healthy' SB with Q-Jet will get around 15 or so. A lockup clutch ('81 I believe) will gain 10%. Overdrive tranny will gain another 20%.
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
I'm assuming you tuned both carburetors so that they were putting out identical AFR for your back to back test, and ran this over a number of gas tanks to avoid vapor variances?
Burning Brakes
Joined: Jun 2009
Posts: 840
Likes: 4
From: Syracuse IN
We just bought a SA Holley refurbish. Really, never been installed. Not a mark on the base or anywhere. Anywho, I double checked the jetting, primary's are 65's and secondary's are 68's. I remember Lars recommends to richen the jetting by 3 steps. Thus put the 68's in front order some 71's for the back. We buy alot of replacement Holleys for our Marine engines. I always double check the refurbish site and start offering $30 below asking price. Good luck Al
Pro
Joined: Dec 2004
Posts: 670
Likes: 28
From: Mitchell SD
...."performance increase"....
Compared to what? A Quadra-Jet?
Hmmmm.... 670 cfm for the Holley; 750 cfm for the Q-Jet.
Now, in reality, your engine will not even need the 670 cfm that the Holley provides. But, the Q-Jet will regulate itself for whatever the engine needs. What about that Holley???
Compared to what? A Quadra-Jet?
Hmmmm.... 670 cfm for the Holley; 750 cfm for the Q-Jet.
Now, in reality, your engine will not even need the 670 cfm that the Holley provides. But, the Q-Jet will regulate itself for whatever the engine needs. What about that Holley???
Tech Contributor
Joined: Aug 1999
Posts: 14,380
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From: At my Bar drinking and wrenching in Lafayette Colorado
Lars
V8fastCars@msn.com
Le Mans Master
Joined: Mar 2008
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From: Oxford MA-----You just lost the game!!!!
Scott