Looking at carburetors for my 383..... suggestions?

Discussion in 'High Performance Modifications' started by bucco47, Feb 26, 2018.

  1. bucco47

    bucco47 Veteran Member

    147
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    Oct 30, 2008
    Tampa, FL
    Had my 350 stroked a couple years ago and have been running the same Eddy 1806 it had when I bought the car. It runs pig rich but drivable. Since I don't know the "history" of this carb (adjustments, etc), I am considering just replacing it so I know what I have. Engine builder at the time told me to ditch the Eddy and get a Holley 750.
    - Comp Cam 12-213-3 (Gross valve lift: .501/.501, Duration @.050: 244) w/hydraulic lifters
    - Dart Aluminum Heads (2.02/1.60)
    - Keith Black Flat Tops
    - Performer RPM intake
    - MSD 8360 distributor
    - TH350 with 2800 stall
    - 3:42 gears
     
  2. Chevyforever

    Chevyforever Veteran Member

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    Jan 4, 2011
    South Eastern Ontario
    The Holley 750 is a decent choice for sure. I would recommend the vacuum secondary type for a street driven car. You might want to consider what type of choke you desire. The old standby #3310-c is a very versatile carb if a manual choke suits your needs.
     
  3. bucco47

    bucco47 Veteran Member

    147
    7
    Oct 30, 2008
    Tampa, FL
    Thanks.
    I was figuring the vacuum secondary would be more streetable and I would go with electric choke.
     
  4. Lowend

    Lowend Administrator. .a car, a man, a maraca. Staff Member Lifetime Gold Member

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    San Jose, CA, USA
    There"s nothing inherently wrong with the Edelbrock/AFB design
    I would recommend just finding someone who knows what they are doing to tune it. That carb, tuned on a dyno will do everything a Holley will.

    The Holley will not be "right" out of the box; they need to be set up for every engine they go on.
    Unless you buy a carb from someone like Pro Systems, they tune on a flow bench
     
  5. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    Nov 4, 2004
    Ringgold, GA
    Agree with Lowend, find someone who is capable of rebuilding and setting up that carburetor. Honestly, I don't plan on ever buying another carburetor, my next purchase in that direction will be an EFI system.
     
    wiseryder likes this.
  6. wiseryder

    wiseryder Veteran Member Lifetime Gold Member

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    belding,mi USA
    This....
     
  7. 1980RS

    1980RS Veteran Member

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    MN
    Well, a 750 Holley is always the go to carb for most. I am surprised that your thunder carb does not work well. I had swapped a guy an 1850 600 Holley for an 800 Thunder carb last year, tossed it on my PP 461 and it ran pretty good, 12 flat, was slightly quicker with the 850 Mighty Demon. Don't give up on that 650 Thunder carb as I think it will run circles around a Holley 600 VS carb.
     
  8. bucco47

    bucco47 Veteran Member

    147
    7
    Oct 30, 2008
    Tampa, FL
    well the problem I have is I don't know what jets/metering rods I have (the numbers on the jets are too faded) I could spend the $60 on a carb kit but considering a lot of little "unseen" things on this car were jacked up when i got it and some he just flat out lied about, I kind of see this carb as the last piece of cancer to remove.
     
  9. Chevyforever

    Chevyforever Veteran Member

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    Jan 4, 2011
    South Eastern Ontario
    0-80508S and drop jet sizes by 2 numbers
     
  10. Lowend

    Lowend Administrator. .a car, a man, a maraca. Staff Member Lifetime Gold Member

    14,609
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    Mar 25, 1999
    San Jose, CA, USA

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