Vintage Thunderbird Club International

... on my search the carb that Ward has is rated at 450 CFM. Not that much "oversize". I wonder what size jets are really in it.

I really have no idea what jets are in it. I've never investigated carbs ... way it goes like 'a Bat outa hell' doesn't run rich and I don't drive it enough to worry about MPG ...

... acting up and the floats were sticking so decided it was time for a new one rather than a rebuild. I figured I got more than my moneys worth out of it. It did have a slightly rich exhaust aroma sometimes which bothered my wife so in the interest of domestic tranquility I bought a Holley 4169C 390 ...

... rusty crusty stuff if anyone is interested probably just pay the shipping for the old stuff I hate to throw anything away.
I am not trying to get rich I just figured NOS stuff would be hard to find it being 2025

I am not a store and work full time so let me go through this stuff and if you want to ...

... be a hole in the cup where that starts.
Its a tube that ends in a cup deep in the manifold. Maybe a pinhole? I did not think 57 had that?

Second thought, how is timing metered on that setup? looks like by vac on one carb?

3rd, that front carb has a choke issue and or gets rich initially when you ...

It could be the carburetor is too rich burning gas...BTW what octane are you putting in the tank?

... 36,000 plus a 10% commission of $3,600 plus a $400 bidders pass and then $2,600 to have it shipped back to Alabama for a total of $42,600 not the best way to buy a car especially if your out of state ... 140k then I found out it sold for 286k back in 2018 at Barrett Jackson definitely a rich man's game.

... fastening the seat belt, etc.
Foot lightly on the gas pedal, turn the key to start - it starts in 2 seconds.
This even after the car has been sitting without running for weeks.

I still don't know how to tune the thing though, it's on my list of things to do. My impression is it still runs a bit rich.

When I bought my Tbird 12 years ago I had no idea the friendships I would make because of the Bird. When my name got called for a plaque Elliot Weiner the President of LITC said "To my good friend Rich". That was better then the plaque having him feel we are good friends and indeed we are. He works hard ...

According to what I have, the 4548 is a 450CFM carb so it seems pretty well matched to the 312. If ... of your exhaust? Maybe you are running a little rich.

A final thought, depending on what state you live in your gas may have less energy in it than others. For example, I get just under 20% worse ...

That's why I was wondering. Almost everywhere I've read people are getting much better milage. There is absolutely no sign of it running rich. No smell, no soot in the exhaust.
Here are a couple of pics one of the horn and the other of the form fitted fuel line I've never seen since but it was fitted ...

... of the tank is the expansion space when the coolant expands.
I was wondering about that canister also.


Yes, that is true. The reason I like an ... Another advantage is that since they don't put a new charge of oxygen rich air into the system with every heat and cool cycle there is less overall ...

... ago. Other standard things to check is base timing, should be about 6 degrees by spec, many people say they run as high as 10 degrees. Pull and cap ... mixture adjustment screws. They may be turned out too far making it run rich at idle and slowly loading it up with fuel till it stalls. As to check ...

Hello from Tampa. The 428 is really locked up, so I'm considering parting the car out. It's a highly-optioned car. It has the factory Motorola 8-Track and the quad speakers in the doors.

The following ... and prices to your email.

Thanks for reading. Rich in Tampa

NOTE TO WEBMASTER!!! IF I have made an ...

... runs clean after warm up you should be good. It could just be old carbon deposits burning off. Smell the exhaust when warm, you should basically not smell anything if it is not running too rich. Also check the exhaust diffusers in the bumper for any soot build-up, there should be not much if any.
As ...

... and second plugs in the firing sequence) had black soot, indicating a rich mixture. Compression test on all cylinders were 150 lb +/- 5 lbs. The engine runs well and idles smoothly.

So what would cause two cylinders on separate banks to run rich?

Lee