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Re: mechanical six-pack carbs.
[Re: Danan]
#64519
10/29/11 08:01 PM
10/29/11 08:01 PM
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Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Quote:
The mechanical six pack set-ups DO have accelerator pumps on the outboard carbs!!
Regarding six packs: I cannot believe how much BS (mis)information is floating around the internet, repeated and passed on my people who have never owned/run a six pack. Same thing with 426 hemis...
Yes, the mechanical secondary six pack carbs do have accelerator pumps, because they need them. It's basically just a holley double pumper spread out over 3 carbs. You need that accelerator pump shot to help cover the transition. What you definitely don't want to do is redneck a mechanical linkage to a set of vacuum carbs. That would perform horridly. Like was mentioned already, there used to be a company that would convert your vacuum carbs to have accelerator pump and mechanical linkage. But my question is at that point why wouldn't you just buy a pair of holley 2300 series carbs and run them?
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Re: mechanical six-pack carbs.
[Re: 70sixpkrt]
#64520
10/29/11 09:02 PM
10/29/11 09:02 PM
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Joined: Mar 2011
Posts: 21
Mississauga, On.
Duster 371
member
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member
Joined: Mar 2011
Posts: 21
Mississauga, On.
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Quote:
I had a set brand new in the box that I sold about 6 yrs ago. I can not find pictures of it with the box and part number. Sorry.
Holley part #s were 4782 and 4783 
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Re: mechanical six-pack carbs.
[Re: meepmeep70]
#64522
10/30/11 03:22 AM
10/30/11 03:22 AM
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Joined: Jan 2003
Posts: 3,682
South San Francisco, Ca
70sixpkrt
master
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master
Joined: Jan 2003
Posts: 3,682
South San Francisco, Ca
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Quote:
Holley part #s were 4782 and 4783
I was talking about the Edelbrock linkage. I sold the carbs and linkage at the same time. The linkage was brand new in the box and I had a pic of the Edelbrock part #.
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Re: mechanical six-pack carbs.
[Re: 72383cudaman]
#64523
10/30/11 06:17 AM
10/30/11 06:17 AM
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Joined: Nov 2006
Posts: 511
Jasper, Indiana
fastnos
mopar
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mopar
Joined: Nov 2006
Posts: 511
Jasper, Indiana
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I do not have any part number for the progressive linkage. If you know of anyone with some old "Direct Connection Catalogs" the numbers should be in there, along with the numbers for the carbs too. Might be a starting point at least. Here are a couple of pics from the net over past few years of different linkages...
A True Hybrid: Burns Gas AND Rubber!
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Re: mechanical six-pack carbs.
[Re: fastnos]
#64525
10/30/11 06:22 AM
10/30/11 06:22 AM
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Joined: Nov 2006
Posts: 511
Jasper, Indiana
fastnos
mopar
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mopar
Joined: Nov 2006
Posts: 511
Jasper, Indiana
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and another...with vaccuum secondaries
A True Hybrid: Burns Gas AND Rubber!
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Re: mechanical six-pack carbs.
[Re: fastnos]
#64526
10/30/11 06:28 AM
10/30/11 06:28 AM
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Joined: Nov 2006
Posts: 511
Jasper, Indiana
fastnos
mopar
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mopar
Joined: Nov 2006
Posts: 511
Jasper, Indiana
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Last one, might be able to track down one of these by old NOS number on different web sites...?
A True Hybrid: Burns Gas AND Rubber!
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Re: mechanical six-pack carbs.
[Re: fastnos]
#64528
10/30/11 09:10 AM
10/30/11 09:10 AM
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Joined: Mar 2007
Posts: 3,277
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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I ended up with a very nice and simple heim-joint linkage from Ben at Promax. Also, using #6 banjo fuel fittings with good result & clearance.
Last edited by jbc426; 10/30/11 09:13 AM.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: mechanical six-pack carbs.
[Re: xs29j8]
#64531
10/30/11 03:49 PM
10/30/11 03:49 PM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
I ran three 250 CFM Holleys with a homemade linkage setup for almost a decade. The throttle response was incredible, the best I have ever had on a carbureted car. Basically it was a 750 CFM triple-pumper... Downsides were around town fuel mileage and top end power due to the 750 CFM limit... 13.6s@ 102 MPH. The carbs were meant for a 289 Cobra, and bought new at a swap meet in Houston for $40/set of three. On the end carbs, I had to cut down the extended air horns to clear the cross bars n the air cleaners.
Here's a photo of the setup:
hmm a neat trick would be to get 3 FoMoCo 550's and run them.
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Re: mechanical six-pack carbs.
[Re: Danan]
#64532
10/30/11 04:28 PM
10/30/11 04:28 PM
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Joined: Jun 2008
Posts: 3,916
usa
lewtot184
master
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master
Joined: Jun 2008
Posts: 3,916
usa
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Quote:
The mechanical six pack set-ups DO have accelerator pumps on the outboard carbs!!
Regarding six packs: I cannot believe how much BS (mis)information is floating around the internet, repeated and passed on my people who have never owned/run a six pack. Same thing with 426 hemis...
ain't this the truth! i made my own linkage back in the day.
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