edelbrock carb running rich

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  • November 09, 2008 11:26 AM - 4379 Views
    smalljaws i have a edelbrock 600 carb on a 406 small block & it seem to be running rich what if any is the best way to fix the problem. thanks john
     

     
     
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  • Comments
  • amswuod1 Rides Info - union, Kentucky
    November 09, 2008 12:12 PM
    amswuod1
    http://www.edelbrock.com/automotive_new/mc/carbs_acc/carbs_access_main.shtml


    Try their site.......

    Bob D.
     
  • Crazyhorse Rod Shop Rides Info Website - bluff dale, Texas
    November 09, 2008 12:22 PM
    Crazyhorse Rod Shop
    you wont like my answer
     
  • smalljaws Rides Info - corbin, Kentucky
    November 09, 2008 12:48 PM
    smalljaws
    yeah i would like to fix the problem what is your answer & i do appreciate & value you advice
     
  • flagator79 Rides Info - west monroe, Louisianna
    November 09, 2008 12:51 PM
    flagator79
    His answer will be change your carb.
     
  • smalljaws Rides Info - corbin, Kentucky
    November 09, 2008 01:21 PM
    smalljaws
    that is no problem what is the best carb.
     
  • Starfire Rides Info - weimar, Texas
    November 09, 2008 02:29 PM
    Starfire
    A Holley 600 CFM with vacuum secondaries and electric choke will take care of the problem.
     
  • sixguns Rides Info - woodland, Washington
    November 09, 2008 04:52 PM
    sixguns
    come on guys, telling the guy to scrap his carb and get a holley because his runs rich, has got to be the worst advice so far this week! any carb set up wrong or with too much fuel pressure will run rich.
    there is nothing wrong with an Edelbrock, like anything else they have to be installed correctly. Get a strip kit for your carb and follow the instructions. simple enuf.
     
  • SAM1951 Rides Info - trussville, Alabama
    November 09, 2008 04:45 PM
    SAM1951
    is this not the one of the easiest carbs to work on? hey let me know your thoughts too.
     
  • cr55 Rides Info - dover, Delaware
    November 09, 2008 06:15 PM
    cr55
    Keep the carb you have. Just jet it accordingly and check the fuel pressure. In the long run you'll be happier with the Edelbrock.........................(holleys suck)....sssshhhhh don't tell those two, they tend to get a little upset.........CR
     
  • SAM1951 Rides Info - trussville, Alabama
    November 09, 2008 06:55 PM
    SAM1951
    IM WITH YOU,I JUST DIDNT WANT TO BE THE FIRST TO SAY IT !
     
  • RSLUGGOBOY Info - salinas, California
    November 09, 2008 08:21 PM
    I DRAG RACED FOR 20 YEARS STRAIGHT DID REAL WELL,COMP ELEM.HOLLY GREAT CARB FOR DRAG RACING. ON OUR STREET RODS WE RUN EDELBROCK CARBS. #1405 600CFM WORKS GREAT ON 350 CHEVS. MY WIFES 32 W/ ZZ4 350, 18 TO 19 MPG, MY 34 ROADSTER W/ ZZ3 350,16 TO 18 MPG. WE PUT 17,000 MILES ON THE ROADSTER THIS YEAR NO PROBLEMS.

    YA GOTTA DRIVE EM
     
  • Crazyhorse Rod Shop Rides Info Website - bluff dale, Texas
    November 10, 2008 08:05 AM
    Crazyhorse Rod Shop
    if holley's are junk how come all the threads on carb problems are about edlebrocks ??????? i have yet to have a problem with a holley.
     
  • cr55 Rides Info - dover, Delaware
    November 10, 2008 08:19 AM
    cr55
    Opinions vary!
     
  • Crazyhorse Rod Shop Rides Info Website - bluff dale, Texas
    November 10, 2008 08:59 AM
    Crazyhorse Rod Shop
    opinions dont fix carburetors
     
  • ol bear Rides Info - crown point, Indiana
    November 10, 2008 09:01 AM
    ol bear
    opinions r like ... ..... everyone has 1 ,,, did do good shine ???
     
  • Starfire Rides Info - weimar, Texas
    November 10, 2008 09:13 AM
    Starfire
    Back in the Carter and Rochester days, before being bought by Edelbrock, they weren't commonly referred to as "Quadra-Junk" without reason! Was not one of W.F. Carter's better ideas!
     
  • dwalters Rides Info - shell knob, Missouri
    November 10, 2008 09:56 AM
    dwalters
    Starfire,

    "Quadra-Junk" as you described was a carburetor mfg. by Rochester. It was a problematic carb, but the problems were "fixable". The Edelbrock carb referred to here is a take off of the old AFB carter. It was a simple dependable (still is) carb. If it is running rich, it is either jetted too fat, too much fuel pressure, or possibly the plugs under the main jets might be leaking. It is an easy carb to "dial in".
     
  • SAM1951 Rides Info - trussville, Alabama
    November 10, 2008 10:18 AM
    SAM1951
    makes me wonder why holley sends 1/4 million dollar truck and tech crew to all the events.
     
  • Crazyhorse Rod Shop Rides Info Website - bluff dale, Texas
    November 10, 2008 10:22 AM
    Crazyhorse Rod Shop
    it's called marketing .
     
  • SAM1951 Rides Info - trussville, Alabama
    November 10, 2008 01:28 PM
    SAM1951
    a carburetor with lipstick is still a carburetor.dont mean nutin by it JUST MY OPINION which dont mean nuthin.i appreciate all yalls help on here too
     
  • flagator79 Rides Info - west monroe, Louisianna
    November 10, 2008 01:45 PM
    flagator79
    I was not suggesting that Edelbrock's had a problem - I have one on my '36 and 2 on my '59 Vette. Have never had a minutes worth of trouble out of any of them - had 2 Edelbrocks on the '36 at one point as well. Skeet
     
  • SAM1951 Rides Info - trussville, Alabama
    November 10, 2008 02:25 PM
    SAM1951
    i like edelbrock too. they just seem to be more simple for me. thanks
     
  • cr55 Rides Info - dover, Delaware
    November 10, 2008 04:16 PM
    cr55
    Shine , you're right , opinions don't fix carbs. Edelbrocks don't need to be "FIXED"....Take a poll and lets see what the consensus is...Who prefers Edelbrock over Holley and vice versa?.You all know where I stand!!!................CR
     
  • 41 Kustom Rides Info - essex junction, Vermont
    November 10, 2008 06:28 PM
    41 Kustom
    I'm not a smart man, but I know what works. I had 3 Hollys I worked on constontly. I've had 1 Edelbrock I havent touched since I put it on 6 years ago. Nuff said.
     
  • ol bear Rides Info - crown point, Indiana
    November 10, 2008 08:01 PM
    ol bear
    HOLLEY,,,,,,,,
     
  • SAM1951 Rides Info - trussville, Alabama
    November 10, 2008 08:18 PM
    SAM1951
    E D E L B R O C K ...................................on a streetrod....................................................
     
    •  SAM D (SAM1951)
    •  
     
  • amswuod1 Rides Info - union, Kentucky
    November 10, 2008 08:40 PM
    amswuod1
    Golly - I like a Holley - on a car for the strip. On my cruiser I run an Edelbrock - set it and forget it...
    Bob D.
     
  • jsrodder Rides Info - aztec, New Mexico
    November 10, 2008 08:53 PM
    jsrodder
    I have had both with no trouble. Holley on my 38 for 16 years. Edelbrock on many others, although they seem to always be rich out of the box.
     
  • TxLumpy Info - conroe, Texas
    November 11, 2008 10:52 AM
    I got a Edelbrock on my old 48........and it runs richer than 6 foot up a bull ass.
     
    •  edelbrock carb running rich
    •  
     
  • ol bear Rides Info - crown point, Indiana
    November 11, 2008 11:24 AM
    ol bear
    ILL REMEMBER THAT ONE LUMPY
     
  • SAM1951 Rides Info - trussville, Alabama
    November 11, 2008 12:17 PM
    SAM1951
    THATS A SIMPLE FIX.
     
  • 50pickup Rides Info - potterville, Michigan
    November 11, 2008 12:35 PM
    50pickup
    My Edelbrocks have been absolutely trouble free for 3 years, Had a couple Holleys back in the late 60s that were nothing but troubles! They changed with the weather & time of day!

    I was Project Engineer for a couple automated core machines that went into the Edlb. foundry about five years ago, and Vic himself came to our plant for the runoff & approval of the machinery prior to shipping. They needed something special to make cores for the new AirGap manifolds. I guess I've been partial to Edelbrock since then.
     
  • 1carguy Rides Info - pleasanton, California
    November 11, 2008 12:44 PM
    1carguy
    Everybody's got comments about Holley vs Edelbrock, but John's gotta an EDELBROCK that's running too rich. Yes, and everyone knows that Edelbrocks do run too rich, but no one has told him how to solve his problem (specifically) short of replacing it. I'm no expert but someone here must be knowledgable about determining what size jet/meters he should try to lean it down. These carbs are simple to work on, you just have to have the right combination for your motor. If no one can help, I'd try Edelbrock's tech support. I'm sure this is a common question and simple solution.
     
  • SAM1951 Rides Info - trussville, Alabama
    November 11, 2008 12:53 PM
    SAM1951
    google "edelbrock tech support" there is every piece of info from install to repair and maint. i think they have a ph # too...check it out BOB HAD THE CORRECT ANSWER RIGHT OUT OF THE CHUTE.
     
  • sixguns Rides Info - woodland, Washington
    November 11, 2008 08:40 PM
    sixguns
    John, you never did say much about your problem other than it runs rich, is it at idle? all the time? part throttle? etc etc.

    Your carb is easy to tune, basicly the springs on the metering rods time when fuel is dumped and the rods and jets meter how much is dumped. anyway you go, you will need a calibration kit to make any changes. The neat thing about your carb is you can make changes in about 2min and never spill a drop of fuel.
     
  • HotRod727 Info - olympia, Washington
    November 11, 2008 09:14 PM
    Back in the 70's I made my living working on carburetors as a mechanic. I think all of them have their issues and all of them can be made to work great with some patience and knowledge. First of all you say rich running but you dont say where in the power range it is occuring. Carbs have three circuits. IDLE,CRUISE, ans WIDE OPEN. Each of these can be jetted and tuned . For example on your carb the amount of fuel is controlled by a needle sitting in the jet. To lean it out you can change to a smaller jet or drop the needle lower or use a larger diameter needle. Now if you changed to a smaller jet you could have problems under cruise or wide open throttle being too lean. If that were the case You would go back to the larger jet and try some different things with the needles and how fast the needles rise etc. These adjustments can be made with the parts you would get in a track pac or strip kit, what ever they're calling it now. The kit will come with lots of different jets and needles for making adjustments. Some other parts will likely come such as an assortment of cams for the needles to create a faster or sower rising needle for fine tuning. Personally I feel a Edlebrock (Carter) is one of the better carbs to tune and easier than a Holley. A Rochester Quadrajet is also a very good carb that can be tuned well but requires more fabrication than the others. I personally run an Edlebrock and am happy with it.
     
    •  Rod Zimmerman (HotRod727)
    •  
     
  • 39deluxe Info - murfreesboro, Tennessee
    November 12, 2008 07:44 AM
    I talked to an Edelbock rep and found that Edelbrock carbs run best on 4.5 to 5.5 psi fuel pressure. The 600 cfm on my truck was running rich, too, and I installed a regulator and set it to 5 psi, problem solved. Another piece of info I found out is that the jet sizes from the factory on a manual choke carb is about 2 sizes bigger than the jet sizes on an electric choke version. I am very happy with mine. Hope this helps.
     
  • smalljaws Rides Info - corbin, Kentucky
    November 12, 2008 08:37 AM
    smalljaws
    hey guys this has got to be the best street rod site on the web & thanks to all who have responded, what prompted my question is my plugs were black and sooted and also my tailpipe. I do have a fuel regulator on the car and that helped a little. I was about ready to give up but I believe I will give it one more try and buy a calibration kit. Again, just like to say thanks to all who have responded, it has been a great discussion with a lot of different views & ideas and that's

    what makes this forum the best on the web
     
    •  john southern (smalljaws)
    •  
     
  • tlp1968 Rides Info - springfield, Illinois
    November 12, 2008 02:56 PM
    tlp1968
    glad you received help here smalljaws....but I could not leave my brothers without my vote....Holley all the way everyday! I like the big Holley's and my 750, 780, and husbands 850 have all been perfect performers with no problems in 14 years! Set it and forget it. Mine even has had air horn removed for racing and she starts and runs everytime. Different strokes (and cfm) for different folks. Best of luck dialing your carb in.
     
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