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By Jim Rowe - 19 Years Ago
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Guys,
Did the 57 ford dual quad setup have progressive linkage?
If not, did the primary venturi in both carbs open at the same time?
I'm working on setting mine up.
Thanks
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By Hoosier Hurricane - 19 Years Ago
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Jim: They open in unison, not progressive. John
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By Jim Rowe - 19 Years Ago
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John,
Thanks for the reply. I want to use the T-Pot from my 56 ford. I will need to find another one.
Did the 57 with Dual carbs use the same carb as my 56? If so did they also use the 57 style distributor?
Do you know of a source for this information on the net?
Or should I just use the new 500CFM Edelbrock carbs?
As a member of the Y-Block "go fast club" I know you have all the answers.
Thanks for your help.
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By Hoosier Hurricane - 19 Years Ago
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Jim: The dual four carbs were slightly different than your '56. They are pretty rare, so you may as well use your '56 and get another one, or as you suggest, go to later carbs with adaptors. The dual four carbs (ECJ-9510-AA and ECJ-9510-AB stamped on the rear of the carb under the fuel inlet) had a different boost venturi with brass rings on them instead of the crosswise roll pins, had a balance tube between the secondary vacuum passages so that both would open at the same time and the same rate, had no spark control valves, softer secondary diaphragm springs, and different jets. The E setup used a '57 distributor (obviously) with slightly different advance rate, but this can be worked out on any post '56 distributor. The main problem you may notice if you use '56 carbs could be a stumble off idle, that's what the more restrictive boost venturi of the E carbs is supposed to fix. Also, the secondaries will probably come in later. I don't know of a website that covers these differences. The Ford parts manual of the time shows the part numbers of each piece of the carbs, but you have to compare the two listings to see what parts are different, but there is no description of the parts. Of course, the parts are no longer available from Ford, probably not from Holley either. John
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By glrbird - 19 Years Ago
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You could use two 2300 holley two barrel carbs. they come in various CFM sizes from 280 to 650 and all the holley parts fit them and they have outside adjustable floats. The small cfm carbs are inexpensive, they would hardly be noticed under the air cleaner.
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By Joe Johnston - 19 Years Ago
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From my experience Gary makes a very good point and his solution may actually run better. I ran the dual haystack Holleys for a couple of years on my 57 Bird. Drove OK except for low rpm stumble and it wasn't an easy car to drive in stop and go traffic, obviously overcarbed. Eventually a backfire lit up the front carb and luckily my daughter saw the flames coming through the hood scoop. Put the fire out and drove it home. Later changed to an Elderbrock and the driveability improved, but it definitely lost the "COOL FACTOR" when the hood is open! Good luck. J
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By paul2748 - 19 Years Ago
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Joe - should have changed those teapots for a couple of carters which were available back in them day. Would have kept the "cool".
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By Hoosier Hurricane - 19 Years Ago
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Joe: Did you have the original correct teapots for your dual four setup? I had duals on my '56 Bird, even had the '56 manifold and correct carbs, and did not have the driveability problems you described. The setup once got 22 mpg on a trip on a 322 inch engine with mild cam in a '56 Club sedan with OD. The problem I had with the setup was my wife. I could not get her to start the car with her foot off the accelerator, she caught it on fire twice. Then I had to remove the duals so she would drive it. Then she began having knee problems and couldn't work the clutch without pain, so I put an automatic in it. Now, after a few years, and knee and hip replacements, she is unable to drive it at all. So I'm thinking of re-installing the 2-4s and the T85 OD like I had it for so many years. I think '56 dual four and '57 blown Birds in the same nest would be cool. And both cars are drag strip veterans. John
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By Joe Johnston - 19 Years Ago
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Don't know if my carbs were "correct" or their condition or if adjusted to perform the best. The car did run well, just stumbled a bit and with the cam and automatic trans it just didn't behave well in heavy traffic. Above 15 - 20 mph it drove well and there were no problems. I could never keep my foot out of it long enough to check any milage figures. The set up is in my attic and I have thought about it from time to time, but have always had other priorities.
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By Hoosier Hurricane - 19 Years Ago
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Joe: Go to your attic sometime and look at the numbers stamped in the carb mounting bases on the rear. ECJ-9510-AA and AB are the '57 dual carb numbers, one of each. '56s are EDB-9510-C, both carbs. John
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By Joe Johnston - 19 Years Ago
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The differences may have been part of my problem with the 2 fours. I checked and the front carb is a 9510-S and the rear is a Y. Also have a M and B in a box of "stuff". "Someday" I will need to clean house and sell this stuff that I will never use. I do hope to get the car on the road again by spring (but I said that last year too!) J
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By Ol Ford Guy - 19 Years Ago
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John F. Check your mail, I sent you a PM a few days ago.
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By Gerry - 19 Years Ago
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Curious to now what kind of milage one cold get with the straight (non progerssive) linkage and dual four carbs? Not that it matters much when you want to go fast milage is not an issue. Gerry
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By Hoosier Hurricane - 19 Years Ago
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Gerry: You are right, when you have performance you don't get mileage. The number of horses you use to get to a certain speed with a certain weight car doesn't vary much from engine to engine. Fuel=horsepower. I had my dual four setup on a '56 Club sedan, with a .060 over 312, T85 with OD, 4.27 Stude gears in a wagon rear end. This was before radial tires, and I got 22 mpg on a trip from Lafayette, IN, around Chicago, to Rockford IL. Obviously, I didn't continually get into the secondaries, but I stayed with traffic all the way-65 to 70 mph. Didn't believe it, so I checked it on the return triP, 21 plus. John
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By Ol Ford Guy - 19 Years Ago
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Does anyone know who made the 2X4 E code manifolds for Ford. Is the Edelbrock 2X4 manifold superior to the E code factory manifold? Thanks,
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By Hoosier Hurricane - 19 Years Ago
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Paul: The manifolds were supposedly made by someone called "Buddy Bar(r)". That's all I know. Maybe Pegleg knows of them, he's been in the casting business a long time. Don't know if there's ever been a comparison between the Edelbrock and the Ford.
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