Your LAS should have adapters in exhaust parts section you maybe able to use .I did on mine to adapt zenith back horizontal for filter to mount .

Finally figured out how to get a picture, I hope!

I run an air filter on my BB-1.  It's the correct filter but I use an adaptor that allows it to fit on the larger diameter of the BB-1 carburetor inlet. I found the adaptor at Hershey years ago.  I am trying to attach a picture but it's too big and I have no idea how I can downsize size it.

Quote from: Articifer Tom on March 31, 2024, 09:47:15 AMCheck float for fuel leak . Maybe little enough to drop it .

I'm going to check the float over carefully tomorrow as you suggested. I was so frustrated with it acting up right before the show that I didn't examine it very close although I would have noticed if it was very heavy or sloshed. That is the only thing I can think of. Today is Sunday and I try to not do much.
Russ T. I was impressed with the BB-1 and will be trying to find the broken piece and a way to put a air cleaner on it that looks somewhat correct. Do you run one? I'll post a picture of the broken piece tomorrow too.

My brass bowl carburetor is sitting on a shelf in the garage.  I run a BB-1 now after years of trouble with the original carburetor.  I know people who run them without issue but they have a reputation as being one of the worst carburetors Carter ever made and mine always gave me fits.  Even when it ran OK it never came close to performing the way the BB-1 does.  There's a reason Chrysler switched over to the  BB-1.  I know that doesn't answer your question but I completely rebuilt mine twice and then had it done professionally thinking that I was doing something wrong.  Each time it ran marginally well for a while and then started acting up for reasons that I could never determine.

Check float for fuel leak . Maybe little enough to drop it .

The day before our big car show the car died on my wife but she got it running and nursed it home. The brass bowl Carter was flooding big time.

 Back story is the gas tank had developed a small leak and had I pulled it off and discovered the baffle was completely broke loose and just bouncing around in the tank. I cut a hole in the top big enough to get the mig gun in then cleaned the inside of the tank and welded the baffle in. Then I had my son weld the piece back in the top (he welds for a living) then sealed the tank with KBS sealer using their kit and following the instructions to a T. The sealer dries hard as a rock and the fuel coming out is now completely clean.

Thinking I had got something in the fuel line when I pumped the tank out that stuck the needle valve I took the bowl and float off. Nothing not even a speck. Put it back together and no improvement. Took it back apart and lowered the float level, no improvement. I took it off and hooked a long fuel line from the pump to it and set it over a bucket with the bowl off. It works as it should, spraying gas out of the needle and seat when I let the float drop and when I gently close it it shuts off the fuel. I checked the fuel pressure and it has less than 1 lb.

I finally gave up and put on a Carter BB-1 that came with the spare motor I bought. It looked pretty bad and the accelerator pump linkage was broke making it inoperable. The hole for the linkage was smaller so I made a very crude one from a piece of bent 3/16 brake line just to get it to the show. It fired right up without even using the choke and runs good. We made the show but now I want to figure out what to do to fix the brass bowl carb. Any ideas? I have worked on everything from  Quadrajets  to a tea cup Holley and have never found a carburetor I couldn't make work.... until now!

Oh I also tried taking the gas cap off incase the now 100% sealed tank was building up enough pressure from the day warming up to overcome the needle & seat that was designed for gravity feed from vacuum tank fuel pump but it made no difference.

Any ideas?

   

This part

Congratulations, the car is looking really nice.

The 56 BelAir is ours too  https://www.texomashomepage.com/events/piston-heads-auto-club-in-bowie-prepares-for-one-of-north-texas-biggest-car-chows-jim-bowie-car-show/