By RossL - 2 Months Ago
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I have a 1957 Thunderbird distributor for my 55 (converted to 12 volts, otherwise stock). I know I have to upgrade the carb to have the proper vacuum advance. Are there any benefits from using a more modern carb or should I just modify my Teapot? At this point I'm pretty familiar with Teapots
For a stock engine is the Mummert manifold a better choice? If I use a 57 type manifold do I need a new air cleaner and/or carb linkage?
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By 55blacktie - 2 Months Ago
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Here's my two cents: if you're happy with the "Teapot" and know how to repair & tune it, modify it to work with the 57 distributor. If you haven't read Ted's instructions for modifying the Teapot, you can find the article on his website (eatonbalancing.com).
If your engine is (and will remain) completely stock, and you keep the Teapot, keep your 55 intake as well. If you later decide to replace the Teapot with a modern carburetor, you'll need an adapter or replace the 55 intake with a later ECZ-B intake manifold. In the meantime, be on the lookout for a good deal on an ECZ-B intake; even if you don't end up using it, you could probably sell it for what you paid + shipping. I've seen them listed for $200-$500 (don't pay $500). I paid either $125 or $175 for mine (can't remember) but that was several years ago.
Some might say that you'll see no gain by replacing your small-base 55 intake with the ECZ-B when retaining the small-valve 55 heads, but Dan Jessup (hotrodreverend.com) will tell you otherwise.
Watch your hood clearance if you use a carburetor adapter, spacer, or aftermarket air cleaner.
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By Joe-JDC - 2 Months Ago
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A Mummert intake manifold and a Holley 465 cfm or Summit 500 or Edelbrock AVS 500 will give you better mileage and more horsepower without any drawbacks if you don't need the heat crossover for choke. The '55 intake is terrible, and the ECZ-B with any of the above carbs will also be superior to the teapot and '55 manifold. Joe-JDC
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By RossL - 2 Months Ago
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Can I use the 55 air cleaner with the carbs that fit the 57 manifold?
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By oldcarmark - 2 Months Ago
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I have a "B" Manifold on mine with 57 Distributor. Carb is Holley 390 which I have done this upgrade twice previously.. I had originally just used a 57 up Distributor with straight Manifold Vacuum. Drove much better than stock Vacuum only Distributor. Changing Carb and Manifold afterwards made a big further difference. If You are not hung up on originality I would say update Carb, Intake, and Carb. Regarding Vacuum source for distributor. It should be hooked up to ported Vacuum Source above the Throttle Plate as opposed to straight Manifold Vacuum.
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By KULTULZ - 2 Months Ago
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And if updating an older engine say in a BIRD, keep all of the take-off parts as it will increase the resale value of the car if the new owner wants to go full restoration.
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By paul2748 - 2 Months Ago
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I agree with Blacktie. I am running a teapot modified for the later distributor (i have the stock 57 distributor and Pertronix II) and stock 56 heads. The cars runs very good,.
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By DANIEL TINDER - 2 Months Ago
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RossL (5/12/2025)
Can I use the 55 air cleaner with the carbs that fit the 57 manifold?
Not without modifying it (and thus destroying its originality). A future project for me, but haven’t yet decided whether to cut up the OEM oil bath, or my stainless repro dry unit. Reasonably priced used originals often available on ePay, and the chrome looks better than stainless.
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By DANIEL TINDER - 2 Months Ago
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RossL (5/12/2025)
I have a 1957 Thunderbird distributor for my 55 (converted to 12 volts, otherwise stock). I know I have to upgrade the carb to have the proper vacuum advance. Are there any benefits from using a more modern carb or should I just modify my Teapot? At this point I'm pretty familiar with Teapots For a stock engine is the Mummert manifold a better choice? If I use a 57 type manifold do I need a new air cleaner and/or carb linkage?
Running 12 volts already gives you a lot of options. Selling that valuable ‘57 T-Bird dist. would buy a lot of upgrade parts, especially since I think several tach-drive solid state models are now readily available (?), though points will seldom let you down if you maintain them. I’ve been successfully running a dual points kit in my Load-o-matic for 50K miles and haven’t touched them, though I’m likely overdue to crank up the SUN machine (and re-read it’s instruction manual 🫤).
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By 55blacktie - 2 Months Ago
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I had a near perfect 57 tach-drive distributor on my 55 Tbird. I had no idea when I inherited the car, and I don't think my dad (2nd owner) knew either. I didn't discover it until I went to replace the distributor cap with a new 55 distributor cap; the 55 cap is smaller. That's when I learned that the original 55 Teapot carburetor /w divorced choke was not compatible with the 57 distributor. The car seemed to run fine, no problem idling or cruising around town or on the highway, but as soon as I put my foot in it, it would miss, and the Fordomatic wouldn't automatically downshift. That's when I contacted Gil Baumgartner (CTCI Gil's Garage) and asked for his advice. His first question was, "What do you want to do with the car?", to which I replied, "Drive it." He then recommended that I keep the 57 distributor and replace the Teapot with a modern carburetor; I did. Rather than getting an adapter for the 55 intake manifold, I bought an ECZ-B intake manifold.
Not long afterwards, I discovered that the short block in my 55 was a 56 ECZ-A. At that point, I was no longer concerned about keeping the car original.
When I decided to replace the 57 Tbird distributor with a CRT, I decided to sell it. I thought I could get a handsome amount for it (based on the outrageous prices I had seen on eBay). However, I ended up selling it to a fellow member of the Sacramento Valley Classic Thunderbird Club who owns a 57. Although he said that he wanted it for a spare, he could have resold it for profit. I used the proceeds to buy the CRT distributor. If my car had been a 57 instead of a 55, I would not have parted with the 57 distributor.
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By RossL - Last Month
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55blacktie (5/13/2025)
I had a near perfect 57 tach-drive distributor on my 55 Tbird. I had no idea when I inherited the car, and I don't think my dad (2nd owner) knew either. I didn't discover it until I went to replace the distributor cap with a new 55 distributor cap; the 55 cap is smaller. That's when I learned that the original 55 Teapot carburetor /w divorced choke was not compatible with the 57 distributor. The car seemed to run fine, no problem idling or cruising around town or on the highway, but as soon as I put my foot in it, it would miss, and the Fordomatic wouldn't automatically downshift. That's when I contacted Gil Baumgartner (CTCI Gil's Garage) and asked for his advice. His first question was, "What do you want to do with the car?", to which I replied, "Drive it." He then recommended that I keep the 57 distributor and replace the Teapot with a modern carburetor; I did. Rather than getting an adapter for the 55 intake manifold, I bought an ECZ-B intake manifold. Not long afterwards, I discovered that the short block in my 55 was a 56 ECZ-A. At that point, I was no longer concerned about keeping the car original. When I decided to replace the 57 Tbird distributor with a CRT, I decided to sell it. I thought I could get a handsome amount for it (based on the outrageous prices I had seen on eBay). However, I ended up selling it to a fellow member of the Sacramento Valley Classic Thunderbird Club who owns a 57. Although he said that he wanted it for a spare, he could have resold it for profit. I used the proceeds to buy the CRT distributor. If my car had been a 57 instead of a 55, I would not have parted with the 57 distributor. Do you like the CRT? Did you do any tuning to the CRT? Do they give you different springs?
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By RossL - Last Month
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I installed the 57 Dist in my car. I don't have the vacuum advance connected, because I haven't modified the carb yet. Do I need a fitting in order to connect the vacuum hard line line into the distributor? I have a fuel filter fitting screwed in now, but I don't want to use this long term.
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By 55blacktie - Last Month
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The CRT distributor comes with 2 black (heavy) springs, 2 silver (medium) springs, 2 gold (light) springs, an advance stop bushing, adjustable vacuum advance, an Advancement Distributor Chart, and installation instructions. Mine is still in the box. Based upon what others (including Ted Eaton) have said, I'm not aware of any reason why I shouldn't like it. If you buy one, try it out of the box before you change the springs.
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By paul2748 - Last Month
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The fitting and a vacuum line are available from the TBird part suppliers. It is a compression type fitting
RossL (6/2/2025)
I installed the 57 Dist in my car. I don't have the vacuum advance connected, because I haven't modified the carb yet. Do I need a fitting in order to connect the vacuum hard line line into the distributor? I have a fuel filter fitting screwed in now, but I don't want to use this long term. 
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By KULTULZ - Last Month
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If you decide to keep the H2140/H4000 (modified DIST signal) the made-up line and fittings shown @ CASCO will not fit as it is for a LOM DIST.
I think you are going to be happier (and richer) with the modified H2140 and 1957 DUAL ADVANCE DIST once you get the CARB signal worked out. Maybe try it before changing fuel delivery.
https://www.eatonbalancing.com/2013/03/02/modifying-the-holley-teapot-four-barrel-carb-for-late-model-distributors/
You will need this fitting to run a rubber vacuum line from the DIST to the CARB -
- C7AZ 12A022-A -

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By FORD DEARBORN - Last Month
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You can fabricate fittings for rubber vacuum hose by cutting old rigid/steel vacuum lines close to the fittings leaving enough tube to slip a vacuum hose onto. Always make sure there are no vacuum leaks either by gauge or mouth.
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By paul2748 - Last Month
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The line that CASCO WILL FIT.; It is made specifically for a 57 distributor and says so in their catalog, despite what the other poster said. . I bought the same line and used it in the 57 distributor that I have in my 56 Bird. I think I used the same piece in my 534 Ford, which has a 312 and a 57 distributor.
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By paul2748 - Last Month
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This is the line normally used on a 57 distributor Note the fittings. CASCO picture
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By KULTULZ - Last Month
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The line that CASCO WILL FIT.; It is made specifically for a 57 distributor and says so in their catalog, despite what the other poster said. . I bought the same line and used it in the 57 distributor that I have in my 56 Bird.
Yours is with an ECZ-B intake and HOLLEY with vacuum port in the same position as the OEM?
That tube was formed for a 57 312 w a 1957/59 DUAL ADV DIS w/ a 1957 OEM H4150 and ECZ-B INTAKE and will also fit a 1955 292 H2140 with a DUAL ADVANCE DIST retrofit? Wonder how many times he will have to re-bend and modify?
They are fancy, one fits all.
The OP has not decided yet if he is going to later fuel induction.
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By paul2748 - Last Month
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UNLESS THE CASCO CATALOG IS WRONG,, IT LISTS A COMPLETELY DIFFERENT LINE FOR THE DUAL QUAD . THIS IS A PIC FOR THE DUAL QUAD (FROM CASCO) VACUUM LINE.
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By paul2748 - Last Month
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ALL HE HAS TO DO IS USE THE END THAT GOES INTO THE DISTRIBUTOR AND CUT OFF THE OTHER END, RUN A RUBBER TUBE FROM THAT TO THE CARB JUST THE SAME AS WHAT i DID ON MY CAR. NO MAJOR BENDING IVE BEEN THERE AND DONE IT, HAVE YOU ?
HE DOES NOT HAVE TO GO OUT AND TRY TO FIND A 67 FORD PART THAT IS MOST LIKELY OBSOLETE .KULTULZ (6/3/2025)
The line that CASCO WILL FIT.; It is made specifically for a 57 distributor and says so in their catalog, despite what the other poster said. . I bought the same line and used it in the 57 distributor that I have in my 56 Bird. Yours is with an ECZ-B intake and HOLLEY with vacuum port iN the same position as the OEM? That tube was formed for a 57 312 w a 1957/59 DUAL ADV DIS w/ a 1957 OEM H4150 and ECZ-B INTAKE and will also fit a 1955 292 H2140 with a DUAL ADVANCE DIST retrofit? Wonder how many times he will have to re-bend and modify? They are fancy, one fits all. The OP has not decided yet if he is going to later fuel induction.
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By KULTULZ - Last Month
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Paul,
I understand you are a little high strung but you might want to calm down just a bit. Your heart you know.
That nipple I showed is most likely available at any large NAPA store.
Now why would one buy a made-up line ($$$) to cut? I don't see your reasoning. And you also said it would fit but then said to cut it. Which is it?
IVE BEEN THERE AND DONE IT, HAVE YOU ?
No. I never had the money to waste like that.
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By paul2748 - Last Month
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no major bending (your snide remark). all that has to be done is cut off the carb end (will not work with the modified teapot) and run a rubber hose to the carb which can be very short. I have done this it it worked out great.. Have you had any experience is doing this modification ? I have. Most likely a better way than to hunt for a 67 ford part that is most likely obsolete which may not work.
KULTULZ (6/3/2025)
The line that CASCO WILL FIT.; It is made specifically for a 57 distributor and says so in their catalog, despite what the other poster said. . I bought the same line and used it in the 57 distributor that I have in my 56 Bird. Yours is with an ECZ-B intake and HOLLEY with vacuum port in the same position as the OEM? That tube was formed for a 57 312 w a 1957/59 DUAL ADV DIS w/ a 1957 OEM H4150 and ECZ-B INTAKE and will also fit a 1955 292 H2140 with a DUAL ADVANCE DIST retrofit? Wonder how many times he will have to re-bend and modify? They are fancy, one fits all. The OP has not decided yet if he is going to later fuel induction.
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By KULTULZ - Last Month
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21.00 for a simple nipple fitting.
You must have one hell of a good job ...
Np Paul, I have never seen a BIRD or worked on one. Guess I never progressed that far.
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By paul2748 - Last Month
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stupid post
KULTULZ (6/3/2025)
21.00 for a simple nipple fitting. You must have one hell of a good job ... Np Paul, I have never seen a BIRD or worked on one. Guess I never progressed that far.
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By DANIEL TINDER - Last Month
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55blacktie (5/13/2025)
I had a near perfect 57 tach-drive distributor on my 55 Tbird. I had no idea when I inherited the car, and I don't think my dad (2nd owner) knew either. I didn't discover it until I went to replace the distributor cap with a new 55 distributor cap; the 55 cap is smaller. That's when I learned that the original 55 Teapot carburetor /w divorced choke was not compatible with the 57 distributor. The car seemed to run fine, no problem idling or cruising around town or on the highway, but as soon as I put my foot in it, it would miss, and the Fordomatic wouldn't automatically downshift. That's when I contacted Gil Baumgartner (CTCI Gil's Garage) and asked for his advice. His first question was, "What do you want to do with the car?", to which I replied, "Drive it." He then recommended that I keep the 57 distributor and replace the Teapot with a modern carburetor; I did. Rather than getting an adapter for the 55 intake manifold, I bought an ECZ-B intake manifold. Not long afterwards, I discovered that the short block in my 55 was a 56 ECZ-A. At that point, I was no longer concerned about keeping the car original. BTW: A NOS ‘57 ‘F’ code dist. just popped up on eBay ($5K) When I decided to replace the 57 Tbird distributor with a CRT, I decided to sell it. I thought I could get a handsome amount for it (based on the outrageous prices I had seen on eBay). However, I ended up selling it to a fellow member of the Sacramento Valley Classic Thunderbird Club who owns a 57. Although he said that he wanted it for a spare, he could have resold it for profit. I used the proceeds to buy the CRT distributor. If my car had been a 57 instead of a 55, I would not have parted with the 57 distributor.
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By RossL - Last Month
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paul2748 (6/3/2025)
ALL HE HAS TO DO IS USE THE END THAT GOES INTO THE DISTRIBUTOR AND CUT OFF THE OTHER END, RUN A RUBBER TUBE FROM THAT TO THE CARB JUST THE SAME AS WHAT i DID ON MY CAR. [quote]The line that CASCO WILL FIT.; It is made specifically for a 57 distributor and says so in their catalog, despite what the other poster said. . I bought the same line and used it in the 57 distributor that I have in my 56 Bird.
This worked out fine. I cut off the carb end for the 55 vacuum line and used a hose to connect to the carb. Getting the carb to idle with no vacuum signal seems to be an issue...................I will start a new thread  
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By KULTULZ - Last Month
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I will start a new thread...
You really need to keep all of this within one thread so that any reader can follow any previous work done.
This thread continues here - http://forums.y-blocksforever.com/Topic168581.aspx
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By KULTULZ - Last Month
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Now that is gnarly ...
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