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Post Info TOPIC: Carb question


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Carb question


The

-- Edited by Johnnee D on Thursday 15th of April 2021 10:29:53 AM



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Canadian Poncho Superstar!

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This?

Holley 4160 Vac Secondary 600 cfm

or

0-1850S



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65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


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are ya partial to holleys. not that i'm an original numbers matching guy but for all around performance and economy i do like a spreadbore. okay my bad the original option back then was a squarebore. not really a great carb. stick with the holley.

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sTevE

55 GMC, 70 Pontiac 2+2 rag



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I used one similar on my 65 Acadian. I'm trying to remember the number. I think it was a 40857. It's a 600 vac secondary. It worked great on there, the little bit that I drove the car before I sold it. The new buyer told me he drove the car a fair bit this summer and it runs great, so I'd recommend that.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)



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I should add, I have always been anti-Holley but the intake I used on the 327 was made for a Holley, so I tried it. My carb of choice has always been Quadrajet.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)



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1850 was a Universal Holley      

 

 

 

 

I personally only use Edelbrock replacement carbs



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A Poncho Legend!

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Performer Series 600 cfm Street Legal Electric Choke Carburetors by Edelbrock

Model 1400 600 cfm square bore  not for computer controlled engines.



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Ray White, Toronto ON

1973 LeMans 454 "Astro-Jet"

Built March 9, 1973 - Oshawa ON

1993 Corvette Convertible LT 1

Built January 10, 1993 - Bowling Green Kentucky 

 




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This is like asking what kind of spray gun is the best :)

Hard to beat the Q-jet for all around economy and performance. Even a badly tuned Q-jet runs. Here's the key - have someone who knows Q-jets rebuild them for YOUR application. It makes all the difference in the world and believe me I've tried many times with the best intentions to rebuild them myself. I finally gave up and now send them to a shop specializing in Q-jets. Bingo - we have bush. It's not a tinker yourself kind of carb imo for rebuilding but tuned it will go a long time without having to mess with it.

Personally I'm not a fan of Holley carbs. I've had many on cars and it always seems like I'm constantly adjusting them. A plus is they are very simple to work on/rebuild I guess. I've bought them new, used, rebuilt them, and had them built with so-so luck. Maybe I'm jinxed.

Edelbrock (AFB based design) carbs are good but the fuel economy isn't great. Probably not important for most people. Only had one but mine ran good out of the box on a 350hp 350 and was reliable. If you have a stock Quad manifold and have to use an adapter plate - don't! Mine ran poorly when I put it on another engine with the adapter plate and was only better after changing manifold. Easy to tune but the one I had you couldn't tune for a smooth transition onto the secondaries. It had slight WOT bog that drove me crazy.

Just my experiences so far......






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Have to agree with Carl & Ray, Edelbrock or Carter AFB's seem to work for me. Have 2 Edelbrock [Thunder series] 500's on the 52 with progressive linkage, haven't touched them in almost 3 yrs. from first slight adj. from out of the box!!!! Also had 2 carter;s AFB on the Catalina for almost 13yrs. & never touched them either & put 45000 + miles on that car!!! Avanti has a 600 Holley & so far [1200 miles] has worked well, so on the fence but the Carter style is much easier to set up!!

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Some times I wake up GRUMPY, but today I let her sleep in    !!!!!!!! BLACKSTOCK Ont.



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I take it you havent had the carb off yet....If you look, there is an adapter under that carb. It is likely the the stock 327 manifold that takes a Rochester 4 jet carb...early 4bbl with smaller venturies than the Holley. Any Holley or Edelbrock (Carter) square bore carb should fit that adapter....but, if it were me, I would look for an Edelbrock Performer manifold and lose the adapter. Adapters tend to make carbs do strange things in my experience

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Hanover, Ont

Ontario Rodders Forum



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2nd what harry said....why not find the correct 4GC rochester that fits that intake.

i've yet to see one of those adapters that didn't leak vacuum, cause driveablity problems.



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or    install a nice  Q-Jet        

 

Heres a Q-Jet idling 2 min,   after firing up,  after sitting 6 mo...biggrin

 

 

 

https://www.youtube.com/watch?v=QXqXzAAwbvw



-- Edited by 427carl on Saturday 3rd of January 2015 10:37:35 AM

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A Poncho Legend!

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Way too quiet!!!

What a nice running engine... Did you buy that car on CP???

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)



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i do have a spare square 4G off a 327 that does need a rebuild

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sTevE

55 GMC, 70 Pontiac 2+2 rag



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heres what 2 quadrajets look like on my 55.

100_7242.jpg



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sTevE

55 GMC, 70 Pontiac 2+2 rag



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.....Quadrajet would be my choice for that manifold.

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A Poncho Legend!

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Carl Stevenson wrote:

Way too quiet!!!

What a nice running engine... Did you buy that car on CP???


         Maybe....biggrin     

         Johnnee D found it, when he was sneaking around Morris Man..  

         He said it was the only Canadian Pontiac, ever to leave Morris, with its original big block in it.....



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Poncho Master!

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Johnny Ringo wrote:

.....Quadrajet would be my choice for that manifold.


 Quad wont fit on that manifold if its for a 4 jet.......you will have take carb off to see what you have



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Hanover, Ont

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The question asked was what NEW carburetor would you recommend.

If old and rebuild is an option I have boxes of Quadrajets to choose from but you'll have to wait for spring because I don't like rooting through the shed in the winter. Fact is I just sold a smoking deal to Roger the Rabbit a nice 500 Caddy Quadrajet. 

CLICK HERE

 



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Ray White, Toronto ON

1973 LeMans 454 "Astro-Jet"

Built March 9, 1973 - Oshawa ON

1993 Corvette Convertible LT 1

Built January 10, 1993 - Bowling Green Kentucky 

 




Canadian Poncho Superstar!

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Looks like Johnee has a Squarebore carb with an adapter for a spreadbore Qj manifold.



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65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


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By the way Steve's dual Quads are from the box in my shed, I think they were the legendary Buick '240's that flowed 850 cfm. 



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Ray White, Toronto ON

1973 LeMans 454 "Astro-Jet"

Built March 9, 1973 - Oshawa ON

1993 Corvette Convertible LT 1

Built January 10, 1993 - Bowling Green Kentucky 

 




Poncho Master!

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Maybe you should check with George Kennedy before you make your final decision!!

Thanks
Randy


www.youtube.com/watch

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You need the one I just bought for my Olds. It came off a 65 Impala. It's for a 300 horse 327 1964 1965 Carter AFB 3721 S, that is the correct carb for your car. Well actually, for a standard transmission model, but check the numbers. I might be willing to part with it if you're interested. Check with me later, if you like.

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Here's some pictures. Forgot to mention...electric choke.



-- Edited by HonestDave on Tuesday 6th of January 2015 07:31:11 AM

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Richmond BC



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73SC wrote:

The question asked was what NEW carburetor would you recommend.

If old and rebuild is an option I have boxes of Quadrajets to choose from but you'll have to wait for spring because I don't like rooting through the shed in the winter. Fact is I just sold a smoking deal to Roger the Rabbit a nice 500 Caddy Quadrajet. 

CLICK HERE

 


 Smoking deal is right!   I think that carb is brand new.... May have been on the shelf at a dealership ?  Sure doesn't appear to have been in service...like new condition .

thanks...Ray!



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later...rog

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I'm a collector...not a builder!!Located in sunny central Saskatchewan at the lakehead!
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