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  #21  
Old 02-11-2023, 04:47 AM
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Quote:
Originally Posted by hurryinhoosier62 View Post
I knew Edelbrock produced a similar manifold for the ‘59-‘64 engines that used six two barrel carbs.
Weren't those based on the Stromberg carb?

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  #22  
Old 02-11-2023, 09:46 AM
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Quote:
Originally Posted by axle View Post
I have a complete Pontiac Man-A-Fre set up for Pontiac, and it will be used in my '32 Ford Coupe.
Well from this thread we know at least 2 of these were cast. I love the foundry stamp! I personally prefer to see rolling museum art to wall art. Hope that beauty ends up on a running PONTIAC ENGINE. Very cool.

  #23  
Old 02-11-2023, 10:44 AM
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Here’s the 6 carb set up from Edelbrock for a Pontiac.
This shot it out of my 1971 catalog, so even then they where still offering that intake.

It was made for Holley carbs.

I am willing to wager that if you had one of these that they ran better on only 4 carbs by not even having the center carbs bolted up.

All I can say is that since I am now 68 and have yet to see one of these in person Edelbrock must of sold very few of them!
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Old 02-11-2023, 12:17 PM
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I have seen several Pontiac Man-A-Fre set ups. 4 carb installations.
Plenty of air capacity for a street car. Very cool looking and a low hood profile.
Cool Pontiac Street Rod stuff.

Tom V.

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Old 02-11-2023, 12:31 PM
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Interesting article about Man-A-Fre direct-port-injection systems ....


https://www.motortrend.com/how-to/me...look-like-new/



.

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Old 02-11-2023, 12:39 PM
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The Edelbrock manifold appears to be a cross ram design where each carb feeds ports on the opposite bank, while the Man-A-Fre has each carb feeding directly into the ports below it.

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Old 02-11-2023, 01:35 PM
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Did the motion mods to friends holly on 427 camaro. Also on the program the guy brings cars back from the junkyard. He did an OHC tempest. He put a man-a-fre intake on it. Didnt know that existed for the ohc.

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Old 02-11-2023, 01:35 PM
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Thanks for the article. Good info and great pics. Wish there was a little more about how the system actually performed.

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Old 02-11-2023, 03:15 PM
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For more information:

https://www.oldschoolinduction.com/

Jon

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Old 02-13-2023, 09:20 AM
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never heard of or saw anything like this before, and at my age too.....
Just so cool

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Old 02-16-2023, 09:13 AM
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I was reading a discussion over on the HAMB board about a fellow who casted a three carb manifold for a GMC 302ci six, and in it someone else posted a photo of what appears to be a Man-A-Fre manifold for a Pontiac OHC 6. https://www.jalopyjournal.com/forum/...1280973/page-2

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Old 02-16-2023, 10:34 AM
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I can see where this thing would be a bear to tune for the street.

The carb on the left front feeds cylinder #1 then 270 crankshaft degrees later #3 then 450 degrees later #1 again.
The carb on the right front feeds #2 then 270 crankshaft degrees later #4 then 450 degrees later #2 again.
The carb on the left rear feeds #5 then 90 crankshaft degrees later #7 then 630 degrees later #5 again, with both intake valves open at the same time for quite a while.
The carb on the left rear feeds #6 then 450 crankshaft degrees later #8 then 270 degrees later #6 again.

... but, it really looks good!

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  #33  
Old 02-16-2023, 02:46 PM
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With a open plenum intake between the 4 carbs, it is no different than a typical
Dominator intake manifold.

Many Individual Runner intake manifolds pull fuel from a carb bore and then "go to sleep" until the next time it needs to provide fuel to the cylinder.

You would have to set it up like a IR intake/carb calibration and it would be more "drive-able" vs a true IR intake set-up.

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  #34  
Old 02-16-2023, 03:21 PM
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There was a Man-A-Fre for an OHC-6 on ebay auction only a few weeks ago. I think it sold for decent money.

  #35  
Old 02-16-2023, 04:08 PM
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Default Patent document

The 2896597 patent is attached for the curious. I see some of these were cast with the patent number 2766743 which is earlier work by different inventor. Looks like a similar set of inter-connections .
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File Type: pdf 2896597.pdf (286.6 KB, 84 views)

  #36  
Old 02-16-2023, 07:08 PM
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So ARE there plenums running between the 4 carb pots?

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  #37  
Old 02-16-2023, 07:37 PM
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Those are "log" manifolds and different than an IR setup.

Quote:
Originally Posted by 25stevem View Post
Here’s the 6 carb set up from Edelbrock for a Pontiac.
This shot it out of my 1971 catalog, so even then they where still offering that intake.

It was made for Holley carbs.

I am willing to wager that if you had one of these that they ran better on only 4 carbs by not even having the center carbs bolted up.

All I can say is that since I am now 68 and have yet to see one of these in person Edelbrock must of sold very few of them!

  #38  
Old 02-16-2023, 08:49 PM
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Bill, Flat-bill IS CORRECT. IT IS a log manifold, not a IR manifold. And we are now discussing
a 6 carb Edelbrock manifold vs a 4 carb Man-A-Fre manifold.

The Edelbrock intake has TWO Plenums, 3 Balance Runners, and 6 Carb Mounts.

The 4 carb Man-A-Fre manifold has 4 carb mounts (with 8 throttle plates feeding a COMMON plenum).
Somewhat like "a crushed flat" tunnel ram intake plenum.

Tom V.
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