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1972 Base 350 cid intake manifold

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Old Feb 21, 2013 | 03:37 PM
  #1  
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Default 1972 Base 350 cid intake manifold

hi guys,
I'm working on a survivor 1972 Corvette, all matching number.
it has the orange 350 CID engine, base 200hp.
it has the OEM intake manifold, the OEM air cleaner with the bottom heavy damaged which need replacement.
but it has a too big carburetor, is the Edelbrock 1407 2354 , 750cfm
So I have two options right now...
buy a new OEM carburettor and bottom air cleaner,
or
buy a better intake manifold (Edelbrock) with matching carburettor and a good air cleaner that fits

what you can suggest?
I read tens of post but I'm really confused.
I would like better low RPM torque and power

thank you so much!!!

bye
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Old Feb 21, 2013 | 03:52 PM
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SUMMIT COMBO
summit shows a lot of options availabel,
but their sales consultant says MAYBE none willl fit...

thank you for your support!

bye
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Old Feb 21, 2013 | 06:09 PM
  #3  
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Originally Posted by Christian GM
hi guys,
I'm working on a survivor 1972 Corvette, all matching number.
it has the orange 350 CID engine, base 200hp.
it has the OEM intake manifold, the OEM air cleaner with the bottom heavy damaged which need replacement.
but it has a too big carburetor, is the Edelbrock 1407 2354 , 750cfm
So I have two options right now...
buy a new OEM carburettor and bottom air cleaner,
or
buy a better intake manifold (Edelbrock) with matching carburettor and a good air cleaner that fits

what you can suggest?
I read tens of post but I'm really confused.
I would like better low RPM torque and power

thank you so much!!!

bye
Go back to a spreadbore carb either an original Q-jet with lars tuning help or holleys speadbore 650. Forget about edelbrock carbs.
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Old Feb 21, 2013 | 06:21 PM
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Originally Posted by Little Mouse
Go back to a spreadbore carb either an original Q-jet with lars tuning help or holleys speadbore 650. Forget about edelbrock carbs.
+1. Keep the OEM manifold too.
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Old Feb 21, 2013 | 06:25 PM
  #5  
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if your goal is #'s matching survior, it will require correct carb, and orginal manifold,
Not Edelbrock anything, keep your orginal manifold, yes you take a small loss on performance.
find an orgianl carb, and have it properly rebuild.
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Old Feb 22, 2013 | 12:08 PM
  #6  
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Hi guys,

thank for the reply.
I will follow your advice and go with OEM parts.
thank you!
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Old Feb 22, 2013 | 04:22 PM
  #7  
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There is no such thing as "too large" of a Q-Jet. That carb is self-regulating and will only flow as much as is needed for your engine. The only changes that might need to be made (if they weren't when the carb was originally installed) are with the primary jets and/or the rods.

If it needs rebuilding (how does it operate now?), you can ask Lars for some advice on proper jetting and best rods to match your engine's needs, or get some advice from others here on the Forum.

Your present best option is to keep that carb. It may have been produced by Edelbrock, but they bought all the original tooling from Rochester and built them for years. There should be no issue with reusing it.
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Old Feb 23, 2013 | 11:30 AM
  #8  
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Originally Posted by 7T1vette
Your present best option is to keep that carb. It may have been produced by Edelbrock, but they bought all the original tooling from Rochester and built them for years. There should be no issue with reusing it.
Charlie -
The 1407 is the Edelbrock re-pop of the Carter AFB - not the Q-Jet. So he really needs to dump the Edelbrock and find a rebuildable Q-Jet for the car.

The original Q-Jet was 750 cfm, and it will run exceptionally well once correctly set up. There are a lot of good (and bad) ones for sale: I'm having customers picking up very nice rebuildable original carbs for under $75 off eBay and CraigsList.

Lars
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Old Feb 23, 2013 | 04:13 PM
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Go to craiglist in minneapolis, mn. and search quadrajets. There is a Vette shop that sells good cores that are marked from the year and model they came from . $40 for one or two for $75.
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Old Mar 13, 2013 | 07:39 AM
  #10  
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Default Carburator

I am not sure if I got everything right or not, but could you use a correct carburetor for the car.

I also have a 1972 survivor. I did a few stupid things twenty five years ago like painted the intake and a few other small parts, but other than that it is all original with the exception of a few parts.

One of them being the carburetor. I could not find a correct carburetor for my 454,4-speed car. So, when I happen to run across a carburetor for a 1972, Corvette with a 350 and an automatic, I snapped it up.

They look exactly the same from the outside, but there are a few minor differences on the inside. Bla Bla Bla.

Well, not too long ago I ran across a 1972, 454 , automatic carburetor. That is a lot closer than the small block carb I have.

So, now I have a 1972 , 350, automatic carburetor that I have no use for. It is all built and ready to go. I thought you might have an interest in it.

Let me know what you think.
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