Im having carburetor problems???

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Old Dec 8, 2008 | 02:36 PM
  #2  
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Sounds to me like you have a vacuum leak. Check all your hoses that go into the carb, the hose from the pcv valve (comes out of your valve cover and goes into your air filter), and the hoses that go into the intake in the "christmas tree" looking thing with all the hoses. Did you switch the carbs, is there a gasket between the carb and the intake? Will the engine stay at idle if you just turn it on? If not, checking the hoses by spraying wd-40 or a carb cleaner will need two people, one to keep the car running, the second to spray the hoses and listen for a change in RPMs.
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Old Dec 8, 2008 | 02:36 PM
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Forgot to mention, Welcome to the forums.
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Old Dec 8, 2008 | 04:08 PM
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holley's can be hard to tune. It does sound like a vaccum leak to me. Inspect all of your hoses.

Carter cards are basically the same as edelbrock carbs. same design and easy to work. You can get some with a small CFM but you may be better off having your's rebuilt or replace it with a reman unit.

welcome to the forum.
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Old Dec 8, 2008 | 08:10 PM
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like 78 says you need to be on your toes with a holly but once you get it tuned its an ok carb but im with everyone else on the vaccume leak
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Old Dec 11, 2008 | 06:29 PM
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Well almost all the spellings I have seen, and the correct one is "VACUUM". Yes, I sell Vacuum cleaners for a living, and Vacuum is correct.

And again X3 I concur, a leak.
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Old Dec 11, 2008 | 08:50 PM
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what about idle set too low? thats the funny thing about carbs either you love holley or hate them. both are good carbs as long as you know what your doing. i think edelbrock/carter seem to be easier to work with.
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Old Dec 13, 2008 | 06:03 AM
  #8  
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Any update green machine?
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Old Dec 13, 2008 | 06:20 PM
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hey c4c i think you scared him away with the spelling thingy hehehehe and yes you are correct don't know what got into me
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Old Dec 14, 2008 | 04:09 AM
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Another one leaves after the first post.
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Old Dec 14, 2008 | 08:34 AM
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Ya, and they never come back to check out the answers
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Old Dec 14, 2008 | 05:27 PM
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aaaaaaaaa thats ok even though they are one post wonderers it still gives us a chance to talk about it if we get into the same situations , my club always has things to say about them but in my book hopfully they will at least return some day and say hi again
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Old Dec 14, 2008 | 05:36 PM
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hopefully
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Old Dec 15, 2008 | 06:11 AM
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A vacuum leak is pretty much un-metered air getting into the engine, so you also should check the carb gasket and the intake gasket, there could be leaks there.
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Old Dec 15, 2008 | 06:02 PM
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Hey Glad ya' came back Green and forgot to ask but did you change out your fuel filter ????? no gas means no power and i would take some carb cleaner and spray into your carb if its blackish looking while its running around 1500rpm's k and go from there its either gas / air / or timing issue and could be also plugs and wires ,,,, so much but you have to start some wheres and id go with the filter and clean your carb and adjust the fuel level on the holly and set the idle screws
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Old Dec 16, 2008 | 04:19 AM
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What kind of choke is on it, there could be an issue with that if you can't get it restarted.
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Old Dec 16, 2008 | 07:24 PM
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have you checked the fuel pump to make sure its pushing fuel to the carb, try and squirt some starting fluid in the carb while some one is turning it over and once it starts (if it does) keep squirting little at a time to see if it stays running
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Old Dec 17, 2008 | 03:38 AM
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Originally Posted by challenger
have you checked the fuel pump to make sure its pushing fuel to the carb, try and squirt some starting fluid in the carb while some one is turning it over and once it starts (if it does) keep squirting little at a time to see if it stays running

X2, I was going to say the same thing. You can also just remove the fuel line to make sure that you are getting fuel from your tank and to see if the pump is working properly.
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Old Jan 1, 2009 | 05:51 PM
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Originally Posted by richinny
a bad EGR valve can cause a leak too.
I didn't think there was Exhaust gas recirculation in '76?
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Old Jan 3, 2009 | 12:16 PM
  #24  
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Have you got it going yet green ????
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Old Jan 5, 2009 | 03:42 AM
  #26  
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are you sure that you are getting fuel to and through your carb? Have you tried to spray starter fluid down the carb as it is running to see if you can keep it running? Are you getting enough fuel to the carb?
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Old Jan 5, 2009 | 07:53 AM
  #27  
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I know you said that you changed the fuel filter, but sometimes people put two in, also I would inspect the lines to see maybe there is a bottleneck somewhere. Do you have suction in the fuel pump?
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Old Jan 5, 2009 | 08:56 AM
  #28  
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make sure you installed the filter in the right direction. Trust me when I say it does matter. Don't ask me how I know.
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Old Jan 6, 2009 | 01:55 PM
  #30  
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Iam just throwing this out there, hows the timing ?
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