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PostPosted: Tue Feb 13, 2018 5:25 pm 
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2 BBL ''SuperSix''
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Joined: Tue Feb 13, 2018 5:08 pm
Posts: 14
Location: Arkansas
Car Model: dodge truck
i believe its a 235 or a 240 motor. it's going in a late 70's dodge truck. i'm having the darnedest luck finding the carb. only thing i've found was a edelbrock 500cfm


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PostPosted: Tue Feb 13, 2018 5:27 pm 
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2 BBL ''SuperSix''
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Joined: Tue Feb 13, 2018 5:08 pm
Posts: 14
Location: Arkansas
Car Model: dodge truck
i've emailed tons of folks on ebay and all the popular car part .coms


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PostPosted: Tue Feb 13, 2018 5:36 pm 
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Triple Duece Weber
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Joined: Tue Nov 23, 2004 6:05 pm
Posts: 2333
Location: Desoto Texas
Car Model: 1972 Dodge Colt
You could check ebay, they show up once in a while. Not long ago someone listed restrictors for a Carter AFB which would make a small cfm carb. 500 is not that much larger.

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PostPosted: Tue Feb 13, 2018 5:42 pm 
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2 BBL ''SuperSix''
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Joined: Tue Feb 13, 2018 5:08 pm
Posts: 14
Location: Arkansas
Car Model: dodge truck
Quote:
You could check ebay, they show up once in a while. Not long ago someone listed restrictors for a Carter AFB which would make a small cfm carb. 500 is not that much larger.
i've got that 500 already. it's not working right with my recent rebuild. working on the ebay front. no luck so far


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PostPosted: Tue Feb 13, 2018 5:43 pm 
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2 BBL ''SuperSix''
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Joined: Tue Feb 13, 2018 5:08 pm
Posts: 14
Location: Arkansas
Car Model: dodge truck
the carb needs be between 300 and 400 cfm


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PostPosted: Tue Feb 13, 2018 6:29 pm 
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EFI Slant 6
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Joined: Sat Nov 08, 2003 8:14 pm
Posts: 298
Location: West Covina, CA
Car Model: 1968 A108 225/3 on the tree
235 or 240?
is it a slant?
or standing up straight?


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PostPosted: Tue Feb 13, 2018 6:32 pm 
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2 BBL ''SuperSix''
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Joined: Tue Feb 13, 2018 5:08 pm
Posts: 14
Location: Arkansas
Car Model: dodge truck
Quote:
235 or 240?
is it a slant?
or standing up straight?
slant. i thought it was worth a shot in the dark to ask you all


Last edited by scootro on Wed Feb 14, 2018 6:37 pm, edited 1 time in total.

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PostPosted: Tue Feb 13, 2018 8:15 pm 
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Supercharged
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Joined: Sun Nov 03, 2002 9:20 pm
Posts: 13104
Location: Fircrest, WA
Car Model: 76 D100
I think the closest carb you are looking for is a Holley 4360. It is a spreadbore four barrel carb, but the secondaries are barely bigger than the primaries. It is rated at 450 CFM and was originally intended as an economy carb in the 70s and 80s. The 4360 came out in a number of models tailored to various GM, Ford, and Chrysler products. Unless you are willing to run a manual choke, you want to get one that has an electric choke, which is somewhat hard to find.

Last year I was researching 4360s and wound up buying a bunch of them. Most of them ended up being parts carbs or cores, but I have a few I was intending to rebuild and run. Most people say they can't be tuned but they share jets with the Weber carbs.

I started a thread compiling all the info I could find on the various list numbers. There were differences that make it worth trying to track down the right list number. See here: http://www.slantsix.org/forum/viewtopic ... er#p450860

If you aren't in a hurry, I can take a look at the carbs I have and see if there is one that might work for you. I am slammed with work right now, though, so it might take me a bit to get back to you.

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PostPosted: Tue Feb 13, 2018 8:20 pm 
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2 BBL ''SuperSix''
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Joined: Tue Feb 13, 2018 5:08 pm
Posts: 14
Location: Arkansas
Car Model: dodge truck
Quote:
I think the closest carb you are looking for is a Holley 4360. It is a spreadbore four barrel carb, but the secondaries are barely bigger than the primaries. It is rated at 450 CFM and was originally intended as an economy carb in the 70s and 80s. The 4360 came out in a number of models tailored to various GM, Ford, and Chrysler products. Unless you are willing to run a manual choke, you want to get one that has an electric choke, which is somewhat hard to find.

Last year I was researching 4360s and wound up buying a bunch of them. Most of them ended up being parts carbs or cores, but I have a few I was intending to rebuild and run. Most people say they can't be tuned but they share jets with the Weber carbs.

I started a thread compiling all the info I could find on the various list numbers. There were differences that make it worth trying to track down the right list number. See here: http://www.slantsix.org/forum/viewtopic ... er#p450860

If you aren't in a hurry, I can take a look at the carbs I have and see if there is one that might work for you. I am slammed with work right now, though, so it might take me a bit to get back to you.
thank you I don't want to put you out there too much trouble besides I'm not a real big fan of Holley carburetors I had a ultra rare Carter 400 CFM carburetor but my engine builder lost it during the rebuild on my motor


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PostPosted: Tue Feb 13, 2018 9:07 pm 
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Supercharged
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Joined: Sun Nov 03, 2002 9:20 pm
Posts: 13104
Location: Fircrest, WA
Car Model: 76 D100
Well, you can buy another right now if you have four bills:

https://www.ebay.com/p/Carter-AFB-9400S ... 7675.l2644

Alternatively, this guy on ebay sells restrictors to turn 600 and 500 CFM Edelbrock performer/Carter AFBs into 400 cfm carbs:

https://www.ebay.com/sch/junk-yard/m.ht ... 7675.l2562

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PostPosted: Tue Feb 13, 2018 9:11 pm 
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2 BBL ''SuperSix''
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Joined: Tue Feb 13, 2018 5:08 pm
Posts: 14
Location: Arkansas
Car Model: dodge truck
Quote:
Well, you can buy another right now if you have four bills:

https://www.ebay.com/p/Carter-AFB-9400S ... 7675.l2644

Alternatively, this guy on ebay sells restrictors to turn 600 and 500 CFM Edelbrock performer/Carter AFBs into 400 cfm carbs:

https://www.ebay.com/sch/junk-yard/m.ht ... 7675.l2562
Damn that's a good find! Thank you so much


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PostPosted: Wed Feb 14, 2018 7:19 am 
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Supercharged
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Joined: Sat Feb 16, 2008 1:25 pm
Posts: 5611
Location: Downeast Maine
Car Model:
Holley 390 cfm or 8007 list it looks like this pricey new, but probably easy to find a second hand unit. It's what I'm running on my hopped up slant six bored out to about 230 ci.

I would select vacuum secondary operation of whichever carb you select as it opens secondaries based on engine's demand not throttle position.

Is engine a flat head, and what kind of rpm is this engine turning to require 400 cfm?

Here is a carburetor cfm calculator to play around with.

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PostPosted: Wed Feb 14, 2018 6:47 pm 
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2 BBL ''SuperSix''
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Joined: Tue Feb 13, 2018 5:08 pm
Posts: 14
Location: Arkansas
Car Model: dodge truck
i got it all figured out! thank you all for the help! here's a link of the pictures of the truck http://www.slantsix.org/forum/viewtopic ... 12&t=61970


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PostPosted: Thu Feb 22, 2018 9:07 pm 
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Turbo EFI
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Joined: Wed Nov 23, 2011 11:07 am
Posts: 2132
Location: SF Bay Area
Car Model: 67 dart 2 door hardtop
You could always go double 2bbls with an offy manifold.....just saying. I had my Webers synchronized and it sounded just like a thermoquad kicking in when I hit the pedal to the floor..also better fuel distribution with two distribution points vs one.

Brian

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PostPosted: Thu Feb 22, 2018 9:31 pm 
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TBI Slant 6
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Joined: Sun Aug 14, 2016 5:52 pm
Posts: 177
Location: SW Washington
Car Model: 66 Valiant, 82 D150, 94 Ram 2500 TCD, 69 Dart
If you are interested, I have a Holley 390 carb that I will not be using. Fair warning, it has no choke function, it's a race carb. I never hooked it up, but it came from a highly reliable source. I decided I was likely to use my car in cooler weather, so the non-choke business is the reason it's for sale. PM me if interested.


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