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12/4/12 9:57am - Original Message: 'Holly/Q-jet'
manchestershark Lifetime Member
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Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.

Joined: 10/31/2007
Posts: 1900
Ermm I have located, for sale, a N.I.B. Holly/Q-jet Carb. It is no doubt for a C-3 Big block. The guy is pushing to sell it. What is it worth? I do not plan to use it myself, but thought a friend of mine could use it on his 454.
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12/4/12 12:58pm - Reply: 'Re: Holly/Q-jet'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19454
Is it a Holley, or is it a Quadrajet? Two different carbs. Corvettes never used a Holley spread bore carb...they either had the Quadrajet, or a "normal" square bore Holley. Quadrajets were made either by Rochester OR Carter....The Rochester Carb division did sublet carb manufacturing out to Carter, so either one would be "correct"...but not a Holley spreadbore. Do you have the numbers for the carb? Value is gunna depend on the original application, such as engine size, HP, trans, etc.

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Joel Adams
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12/4/12 4:39pm - Reply: 'Re: Holly/Q-jet'
Norsky Lifetime Member
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Twin Lakes, CO - USA

Vette(s):
SOLD - "The Toy" - 1970 Convertible
SOLD - "The Beast" - 1990 ZR-1 (#682)
"BLKBRRD" - 1978 Trans Am, 400ci/285hp, 4 spd, Black w/black interior, Hurst t-tops

Joined: 1/23/2002
Posts: 6714
Not to confuse the topic - but on "The Toy" there is a Holley spread bore.  I found out directly from Holley that it is a Q-Jet replacement made for the 350ci in the 1980s.  And if memory serves the 1970-72 LT-1s had Holley carbs.

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Jim Olson 

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12/4/12 5:29pm - Reply: 'Re: Holly/Q-jet'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19454
As a replacement, yes....I should have clarified that, but never as original equipment, which is what I thought Mark was inferring. If the carb in question is simply one that will "fit" a big block, then the value is prolly around $100 or so, even tho it is new.

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Joel Adams
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12/5/12 8:21am - Reply: 'Re: Holly/Q-jet'
manchestershark Lifetime Member
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Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.

Joined: 10/31/2007
Posts: 1900
 My querry was for any information on the Holly/Q-jet. I am not familiar with the unit. I have seen one on a 74' 454, and thought they were suppose to be there. The car was sold to him in original equiptment condition as per him.  I'm just learning bout them.  PRICE, Just wonderin if it's worth buying and keeping it for others to use. I have some Q-Jets laying around, and thought another one wouldn't hurt. Depending on price of course.

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12/5/12 9:11am - Reply: 'Re: Holly/Q-jet'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19454
Terminology is killin us here....lol! Mark...it is either a Holley Spread Bore, OR a Rochester/Carter Quadrajet. Both are spreadbore carbs, with the large secondary bores, but only the Rochester/Carter is actually called "Quadrajet". IMOH, an original, GM replacement Quadrajet would be worth more $$$ to the right person needing one. A Holley spreadbore is just too common to be worth paying very much, since it was never used on a Corvette from the factory. A pic might help, too... :<)

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Joel Adams
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12/5/12 1:04pm - Reply: 'Re: Holly/Q-jet'
manchestershark Lifetime Member
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Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.

Joined: 10/31/2007
Posts: 1900
WHOOPS!  Can't do pictures, only letters. Not to smart with these putors.  O.K. it must be a HOLLY SPREDBORE. It looks like a Q-jet to me, so.....   Guess I'll let the guy keep it.

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12/5/12 1:17pm - Reply: 'Re: Holly/Q-jet'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19454
Holley 650cfm Spreadbore Rochester 750cfm Quadrajet. I may have had a few too many brain farts, but I don't recall ever seeing a Holley-built Quadrajet. I HAVE seen what Holley had that was called the "Econojet", that looked a LOT like a Quadrajet...but was quite a bit smaller, bore-wise, and had several other differences.....maybe that's what the guy has....

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Joel Adams
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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12/5/12 4:22pm - Reply: 'Re: Holly/Q-jet'
manchestershark Lifetime Member
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Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.

Joined: 10/31/2007
Posts: 1900
Clap YEAH!  That looks like the feller. Has a ? accelerator pump on the front bottom like that one. Electric choke, and the rear bores are much bigger than the front ones. Soooooo......., are they any good? Are they worth anything?  Better/worse than O.E.M.   Embarrassed Sorry, I'm learnin.

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12/5/12 8:47pm - Reply: 'Re: Holly/Q-jet'
Redwingvette Lifetime Member
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Waterford, MI - USA

Vette(s):
1973 Red coupe

Joined: 9/13/2002
Posts: 1675
I put one of them there Holley spreadbore carbs on my 73 after the motor rebuild. It took a little to get it tuned to my car but it runs real good. Not sure I had any real issue with the original carb but a few beers and a Summit catalog can cause for some new projects just because. After all, just being able to say you have a Holley has to be worth something.

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Brian - NCM Lifetime Member
          
73 coupe L48, Flat-top pistons, Performer RPM Heads, Crane Cam and roller rockers, Holley 650 vac sec. Performer intake,
3.55 gear BTO 200-4R trans,
Leather seats, F-body seatbelts, Pioneer CD player
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Dewitt radiator and dual electric fans
Borgeson Steering box
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12/7/12 10:44am - Reply: 'Re: Holly/Q-jet'
dads2vette Lifetime Member
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Ash Fork, AZ - USA

Vette(s):
1981 Red Interior White exterior

Joined: 4/18/2007
Posts: 1038
Off topic here, sorry...do you guys remember going to a junk yard and getting performance parts?  4 barrel carbs, posi rear ends...  Now the best "junk" yards that carry that stuff sit on my pc desk and are only a couple clicks away.  I used to love digging for parts, ah the memories.

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12/7/12 1:40pm - Reply: 'Re: Holly/Q-jet'
manchestershark Lifetime Member
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Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.

Joined: 10/31/2007
Posts: 1900
Thumbs Up Yeah, we brought our own tools and the shipping was WAY WAY less expensive. The bee stings and chasing rattle snakes was not much fun, but the stuff we took home ALWAYS fit.

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12/7/12 2:51pm - Reply: 'Re: Holly/Q-jet'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19454
I used to work in a "Wrecking Yard", as they were called back then. Now they're "Salvage" yards. WhatEVER...lol I had access to any part I needed, for whatever car I needed parts for....and they were dang cheap, too! lol I weren't all that excited about crawling under a car with a cutting torch while fighting off rattly snakes, and Black Widders, but I learned a LOT about a lot of different kinds of cars from there. With that said...let's try to veer back to the actual topic....lol.

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Joel Adams
C3VR Lifetime Member #56    
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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12/7/12 10:55pm - Reply: 'Re: Holly/Q-jet'
F4Gary Gold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 869
Shoot, I thought it said Holey Quadrajet. So much for the Batman reference.

LT-1's had a Holly 4150.

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12/8/12 10:53pm - Reply: 'Re: Holly/Q-jet'
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 394
I knew a guy back in the 70s that put a Holley spreadbore on his SBC and he said it had all of the bad features of a Holley and none of the good features of the Q-jet.

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1973 L-82 4 spd

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