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By mgcookwv - 9 Years Ago
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Has anyone adapted a 350 Holly 4 barrel carb to a stock 1955 intake on a Ford Fairlane? I'm fed up with the teapot.
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By charliemccraney - 9 Years Ago
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Carburetor adapters are readily available from many manufacturers. Speedway Motors, maybe even Summit or Jegs. You will also need to replace the distributor with a '57 or newer one. The stock distributor will not work with a newer carb.
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By mgcookwv - 9 Years Ago
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Thank you, seems there isn't a way to get around that distributor.
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By DryLakesRacer - 9 Years Ago
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I needed the same thing 4 yrs ago and at that time Rock Auto had the rebuilt, no exchange, and reasonable. Now it seems e-bay lists them needing rebuilt. The one I bought was fine but not long after the condenser failed (made in China). Replacement failed also, so a Pertronics was installed and problems were solved. When you consider both a dist. and a carb. at the same time it's a little pricey especially when u need to work with the fuel lines,linkage, electric choke, and possibly a new air cleaner. Good luck.
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By paul2748 - 9 Years Ago
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Need the name of a good rebuilder for the teapot?
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By PF Arcand - 9 Years Ago
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Mg..- Just to ensure everyone is on the same page, you are referring to a 272 with the optional 4 Bbl power pack carburetor ? Reason for asking is, I've seen an incorrect reference to the standard 2 bbl carb as a Teapot..
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By mgcookwv - 9 Years Ago
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The T=Pot is newly rebuilt, I have owned the car for 8 years and have had idling issue ever since I bought it, that's why I got a new carb and it didn't make a difference , I have a friend that is going to take the distributor out and make sure everything is on #1 top dead center and we are going to go over the vacuum line to see if we can solve the problem. It use gas like you wouldn't believe, that's why I want to change the intake and the distributor if it will solve my problem so I can enjoy my car.
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By mgcookwv - 9 Years Ago
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Yes, thank you , it is a 4 barrel gas hog.
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By charliemccraney - 9 Years Ago
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If the problem exists with 2 different carbs, then it's probably not a carb problem.
I don't know if there is a good way to trouble shoot a load-o-matic distributor but if it is even half as old as the car, it's probably time for a rebuild or replacement. The later distributor will work fine with the Tea pot. You simply either plug the vacuum advance altogether or use a manifold vacuum source for the vacuum advance on that unit. You do not use the same vacuum source as the load-o-matic. So, the options there are rebuild the original, or go ahead and replace it with the newer unit.
Another thing is the crank damper. The damping mass slips over time, resulting in incorrect initial timing. That can affect idle quality and fuel mileage. At 61 years old, it's about time to have that damper rebuilt. You can trouble shoot this in a way by advancing the timing and seeing if the situation improves.
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By DryLakesRacer - 9 Years Ago
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My 292 got 12 mpg with one 4 barrel and 11 mpg with 2 four barrels... Since it's a weekend car with mostly in town driving I accept it..especially with 10-15% ethanol..
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By Ted - 9 Years Ago
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mgcookwv (3/15/2016)
Has anyone adapted a 350 Holly 4 barrel carb to a stock 1955 intake on a Ford Fairlane?
I’m not familiar with a 350 cfm Holley four barrel carb? Is this a misprint?
On the Holley 4V Teapot carbs, one of the major problems is getting the power economizer valve assembly to seal properly to the top cover plate. Unless this assy is perfectly sealed, the power jet below it remains open all the time thus enriching the fuel mixture all the time rather than just when the engine is under acceleration. There is also a brass bushing within the carb stud hole in the top cover plate and it must also be sealed to insure the vacuum signal going to the economizer valve is not lost. A rubber washer under the air cleaner stud nut at the top of the cover plate fixes this particular problem most of the time. The Teapot carburetor kits now come with a generic valve assembly but back in the day, those valves were specific to the application. On certain applications, I have had to cut one or two of the coils from the top of the economizer valve spring to alter the point in the vacuum range at which it opens (or closes depending upon your perspective). All these factors affect the fuel mileage.
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By charliemccraney - 9 Years Ago
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This is what Ted is talking about.
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By Pete 55Tbird - 9 Years Ago
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Holley made a 390 CFM 4BBL and a 350CFM 2BBL. The better choice would be the 390 as the two primary throttle plates are small enough to provide good response at low
RPMs. Pete
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By 57RancheroJim - 9 Years Ago
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I use a 390 on my 292, great for a non race street machine. I did have to re jet it. The 390 also has smaller diameter venturi which matches the small ports in the A & B manifolds.
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By chris70 - 9 Years Ago
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What jets do you have on the 390? Is your 292 otherwise stock?
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By 57RancheroJim - 9 Years Ago
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chris70 (3/19/2016)
What jets do you have on the 390? Is your 292 otherwise stock? My 292 is basically stock, just an Isky E4 cam and Pertrionix conversion. I don't recall the jet numbers but I had a slight miss at cruising speeds and went up 2 jet sizes cured it. I'm running crap California gas so that may have been part of the problem with the original jet size?
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By chris70 - 9 Years Ago
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That's practically the same engine as in my truck!!! I 've to fix the ignition first,if it's still not running good bigger jets will be the next step.
I've no clue if in Italy fuel quality is better or worse as in California,but it's surely more expensive!!!!!!
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By mgcookwv - 9 Years Ago
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But mine doesn't idle properly, I've decided to put on a new carb with an adapter on my current intake, replace the filter, I want to drive my car up to maybe 100 mile trips, i'm not concerned about mpg as much as I am reliability.
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By mgcookwv - 9 Years Ago
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That's exactly one of my problems, I heard a hissing noise while it was idling , I put my finger exactly over the tube and the hissing stopped.
Thanks
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By mgcookwv - 9 Years Ago
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Yes, 390 or 500 Holly only.
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