My 4 Barrel Holley Carburetor Becomes Flooded When I Try To Start My Car. What Should I Do To Fix This

Posted in Fuel Systems & Components | Asked on Sep 23, 2010

The carb is on a 360 ci engine in a 74′ charger. The car is at my work, can I use starter fluid to get it to start so I can at least get it to my house. Once it starts it runs fine, but this time it won’t start.

There are 9 Answers for "My 4 Barrel Holley Carburetor Becomes Flooded When I Try To Start My Car. What Should I Do To Fix This"

  1. Cgriffin1972 says:

    Get a Edelbrock carb instead.

    The Holly is junk, they leak around the seals.

    yes starter fluid may help.

  2. Year Of The Cat says:

    Well what type of fuel delivery system do you have? Manual or electric pump? You can buy a fuel regulator. I have one on my 65 Pontiac Temp w/455 c.i. motor, running a high flow electric fuel pump. It has 6 settings that restrict or increase fuel flow. Also, have you had your carb tuned and cleaned? etc… I really need to know your set up though.

  3. Dodge Man says:

    You either have too much fuel pressure or the float is sticking on it or the needle valve isn’t any good,that’s the only thing that will cause what its doing,Holley carburetors are good for that anyway,you may have to reduce the amount of fuel pressure on it,if its flooding you may not get it started though,good luck with it.

  4. Randy K says:

    First make sure the choke is not closing when the engine starts, then check your float bowl level by taking out the sight screw on the side of the bowl. Gas should just drip out, you can adjust it up or down with the screw on top of the float bowl. If the level is fine, you probably have a bad seal,inside the carb.

  5. Oklatom says:

    Check the float to see if it’s sticking open. If not, check for crud in the needle valve and make sure it it shutting off the fuel flow when it’s full.

    Also check your pressure, if it is too high you may have to put a regulator in the line to drop it down a bit.

    Are you sure it’s getting flooded? What you are describing sound more like fuel not staying in the carburetor.

  6. Krtdrof says:

    Holley carburetors..BAH! HUMBUG! Been through this a thousand times with people over the years. Ya don’t just buy a holley carb, take it out of the box, bolt it on any engine yer runnin and yaaaaaaaaaahoooooo were off to the races. O.K.? Holleys that come on cars from the factory are one thing, but box holleys off the shelf are a whole other world. These carbs ARE NOT one size fits all units. If you take a 750 double pumper off the shelf that just happens to run great on your “built”350 Chevy, do you really believe it will be able to perform just as beautifully jetted the same way if you swap it to a 455 Olds rocket? Basically these units are intended to be custom set-up to run on the particular application(engine) that you have. They are a machine unto themselves and are in constant need of fine tuning and tweaking. If your problem really is a flooding problem it is most likely a float/needle&seat issue. Get yourself the correct kit and put it in the hands of a competent mechanic/technician.

  7. Alphonse V says:

    Adjust the jets

    –good luck

  8. Mister Ss says:

    Holley junk!, get an edelbrock, sounds like the float might be stuck, take a hammer and lightly rap the front of the carb a couple of times and see if the float will unstick, also holleys are known for the power valve going out on them and that will cause the same problem.

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