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  #31 (permalink)  
Old 05-16-2010, 03:36 PM
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I agree with Hippie, once a QJ is setup properly it will outperform any Holley or Edelbrock on the planet. Had a buddy (Bruce) in high school who ran nothing but QJ's, he had a garage work bench full of QJ's and parts. I and my friends were too stupid in the day to pick up on what he was doing with the QJ, but he could makes them walk and talk.

Vince

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  #32 (permalink)  
Old 05-16-2010, 03:44 PM
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Quote:
Originally Posted by h0trod389
QUESTION...is there a square bore quadrajunk? never seen one
"QuadraJunks" are not available as a square bore and neither are Quadra JETS.
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  #33 (permalink)  
Old 05-16-2010, 06:31 PM
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Maybe I'll try it as a post on this thread given that it didnt take off on its own thread.

What about quick fuel carbs? The guys that left holley (or so I was told) and basically build a holley but without all the hiccups
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Old 05-17-2010, 04:09 PM
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Well to help you out I had a double pumper Quick fuel drag racing carb and it was very nice but a bit pricy. If you want one for the street Quick fuel came out with a new all aluminum series called the Hotrod series carburetors. They are similar to the holley street avenger's and they come in 580, 680, and 780 cfm rated flow and if you have just basically a stock motor the 580 would be a nice one.http://www.summitracing.com/parts/QFT-HR-580-VS/

But you will have to still tune it. I sold mine cause the double pumper was way to low on mpg. They have excellent tech support and if you talk to the guys they will answer any questions you have. They get there stuff from over seas and assemble them here and are good at checking everything.

Eric
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  #35 (permalink)  
Old 05-17-2010, 04:17 PM
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Quote:
Originally Posted by eric32
They get there stuff from over seas ......
That's a deal breaker right there for me.
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  #36 (permalink)  
Old 05-17-2010, 04:22 PM
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Well Hippie most things nowadays are made over seas and you can't really totally get away from that. Even American made cars from GM, Ford etc get there metal and other parts from over seas too. Just about anything I get at the autopart store comes from China or elsewhere. The old days of getting Made In The USA are pretty much gone. It's sad but what can you do that does not mean you should stay away from something. What ever his choice is I am sure he will make a good one. Just as one person posted if you want the best fuel mileage even though I don't like Quadrajets they will give you the best overall fuel mileage.
Eric
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  #37 (permalink)  
Old 05-18-2010, 01:35 PM
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Quote:
Originally Posted by eric32
Well Hippie most things nowadays are made over seas and you can't really totally get away from that. Even American made cars from GM, Ford etc get there metal and other parts from over seas too. Just about anything I get at the autopart store comes from China or elsewhere. The old days of getting Made In The USA are pretty much gone. It's sad but what can you do that does not mean you should stay away from something.

Eric
When did that happen?!!!

You can still buy American if you make a concious effort to do so and I will continue to do so until I have no choice.
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  #38 (permalink)  
Old 05-18-2010, 02:13 PM
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Quote:
Originally Posted by Hippie
When did that happen?!!!

You can still buy American if you make a concious effort to do so and I will continue to do so until I have no choice.

Its damn hard to find some parts that are American made, I would say impossible in some cases, even for domestic cars.



On a side note, rochester did maek a squarebore carb I believe though not a "quadrajet", and holley made a spreadbore (have one of those paperweights in my garage waiting to be rebuilt).

I don't know why some people are so hung up on primary size, hell if you want better atomization just throw in some billet annular boosters- problem solved.

On this particular setup just about any carb will work, its a REALLY mild deal and I would go with the one that takes the least amount of time and money to install and tune (Edelbrock). I have done a lot of different types of carbs, including a few holleys and edelbrocks, and edelbrocks are dirt simple, just remember how to assemble the linkage and you can't screw it up. Holley's aren't too bad either, BUT they are not as quick to tune, but they can really be dialed in with aftermarket parts. Edelbrock requires a little more innovation to tune as finely as a Holley.

As far as taking forever to tune and diddling, only when the temp or humidity changes- and that is with any carb.

Most of my cars I tune about 4 times a year- once each season. And once you get used to it it shouldn't take more than a half hour.
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Old 05-18-2010, 03:24 PM
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Not to hijack this thread totally ,but maybe I can ask some advice. If a fella had a 383 stroker.10-1.edelbrock airgap RPM.270 HR cam. hedman headers. If he was thinking of giving holley another spin which one would ya recommend?The main emphasis would be on torque at the low end to move a 69 impala, with some upper end snot to
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  #40 (permalink)  
Old 05-18-2010, 03:41 PM
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I'm using a Summit electric choke carb. It works well and was very easy to tune. It's basically a Holley DP carb, but tunes fairly easily like an Edelbrock. It was pretty much ready to go out the box.
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  #41 (permalink)  
Old 05-18-2010, 04:27 PM
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Sooper I would recommend the Holley 1850s model 4160 600 cfm carburetor which runs about $250 or if you want a similar holley carb with a secondary metering block instead of the metering plate and center hung float bowls with vacuum quick change secondary's then I would recommend the holley 670 street avenger.

It runs around $345 with a manual choke. I am using one on a 350 with a little less compression then you with world sportsman 2 heads with edelbrock rpm performer intake and a crane hydraulic roller with 222/230 @ 50 duration and 509/528 lift. My carb runs excellent and gives me really no issues after you tune it well. Be aware the holley avenger carbs are pretty lean out of the box and you might have to jet up some.
Eric
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  #42 (permalink)  
Old 05-18-2010, 04:33 PM
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Quote:
Originally Posted by ap72
Its damn hard to find some parts that are American made, I would say impossible in some cases, even for domestic cars.



On a side note, rochester did maek a squarebore carb I believe though not a "quadrajet", and holley made a spreadbore (have one of those paperweights in my garage waiting to be rebuilt).
As long as American made parts are available I will hunt them out. Unfortunately I have purchased parts online believing them to be made in the USA only to find a tinly little "Made in China label stuck in an obscue spot on the box.

The squarebore Rochester is the 4GC, a decent carb in it's day but no performance carb and parts are hard to come by now. My Studebaker came with one which got replaced with a 500 performer that has now been replaced with a 390cfm 8007 Holley. I got tired of having to prime the Performer every time I let it sit without starting it for more than 48 hours.

Why not a Q-Jet? I'm switching to an Edmunds 2 x 2 intake later plus I didn't have a spare Q-Jet, I had the Holley.

Holley made the 4165 Mech. Sec. and 4175 Vac. Sec. series of spreadbores. The 6210 650 is probably the most prolific of the 4165 series. They also made a 4360 series, they are 450 cfm with mechanicla secondaries and are pretty much a bolt on and go because there aren't a lot of tuning parts available. I have a couple 6210's hanging on the wall and a couple 4360's

Last edited by Hippie; 05-18-2010 at 04:42 PM.
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  #43 (permalink)  
Old 05-19-2010, 06:03 PM
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Poor guy. He asked which carb is best and now he is getting head and cam recommendations! Now I know why this site got a little irritating.
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