Suggestions for intake & carb(s) for 572 Hemi

Fuel and Air Systems

  1. Richard Cranium

    Richard Cranium FBBO Gold Member FBBO Gold Member

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    Contemplating replacing the crossram & dual Holleys to something more streetable.

    So, 4 barrel or inline dual 4's? What carb(s)?
     
  2. Fran Blacker

    Fran Blacker FBBO Gold Member FBBO Gold Member

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    Dominator makes more hp than early xrams .CFM I'll leave to others. Ran a xram for years.
     
    Last edited: Jan 10, 2020
  3. snakeoil24

    snakeoil24 FBBO Gold Member FBBO Gold Member

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    Single four, single plane cut down for better signal.
     
  4. Darter6

    Darter6 FBBO Gold Member FBBO Gold Member

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    Replaced my cross ram and 500 AFB's.My engine is smaller,only a 472. I went with a M1 single four. Carb is small 750 Edelbrock. For me it works well on the street. I also replaced the manual shift valve body with a re-programed stock valve body. Replaced the 4.10's with 3.23. Still fast enough and will smoke the tires till I let up.Starts right up and a pleasure to drive.
    Not saying that there was anything wrong running the cross ram other that I don't have the urge to smash the pedal to the floor as much. :)
     
  5. snakeoil24

    snakeoil24 FBBO Gold Member FBBO Gold Member

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    Cross ram is great looking but
     
  6. Fran Blacker

    Fran Blacker FBBO Gold Member FBBO Gold Member

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    IMG_0192.JPG IMG_0193.JPG
     
  7. snakeoil24

    snakeoil24 FBBO Gold Member FBBO Gold Member

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    They run like shit
     
  8. silversedan

    silversedan Well-Known Member

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    they run like shit? that's a faults statment if you know what you're doing. they can be made to run just fine.
     
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    • steve340

      steve340 Well-Known Member

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      Would you consider fuel injection? The newer Holley systems seem pretty good.
      The main advantage I can see these days is they can adjust for the crappy fuel were a carb cannot.
       
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      • 493 Mike

        493 Mike FBBO Gold Member FBBO Gold Member

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        No one seems to talk about them any more but, the FAST efi 2.0 will support 1200 HP and were one of innovators of these FI conversions.
        Mike
         
      • snakeoil24

        snakeoil24 FBBO Gold Member FBBO Gold Member

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        Sorry but I know these well can't run for street too tempramental
         
      • snakeoil24

        snakeoil24 FBBO Gold Member FBBO Gold Member

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        Works well and you can hide inside a cross ram
         
      • 68 HEMI GTS

        68 HEMI GTS Well-Known Member

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        I drove mine all over the place with no issues. Worked just fine on the street.
         
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        • snakeoil24

          snakeoil24 FBBO Gold Member FBBO Gold Member

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          Some one will always have the opposite answer to everything
           
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          • 68 HEMI GTS

            68 HEMI GTS Well-Known Member

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            “Sorry but I know these well, most people cannot make these run on the street. They can be temperamental for novice tuners.”

            I fixed the above quote.. :lol:



            Back to the original post, your best bet would be an in-line manifold. If you want to stay with the Holley carbs use the stage V. If you want to switch to small Edelbrocks use the new Edelbrock Inline. The “mopar” single plane for a 4150 is also a good intake. It’s a rebranded Barton. Use that and a 1000CFM 4150. The consensus for most is a HEMI doesn’t look right with 1 carburetor but, sometimes it’s not about looks. The single 4150 would be my choice for ease and best drivability.
             
            Last edited: Jan 13, 2020
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            • snakeoil24

              snakeoil24 FBBO Gold Member FBBO Gold Member

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            • Hemirunner

              Hemirunner Well-Known Member

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              I prefer the “dual quad” look on a hemi. If you just want the simplicity of carbs along with a stock style look, the factory intake with a couple of 650AVS2 carbs is a solid way to go. If you need to purchase an air cleaner anyway, you might as well go with the stageV single plane intake. The carbs are spread like the marine intake so you’ll need the correct air cleaner base. You’ve got enough cubes and stroke to make a single plane work well.
               
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              • 68 HEMI GTS

                68 HEMI GTS Well-Known Member

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                I missed the fact it was a 572, it would be pretty under carbureted with a single 4150. Single plane for sure. A well prepped dominator would also be a good choice.
                 
              • Charger 770

                Charger 770 Member

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                Nothing wrong with a cross ram if dialled in right :thumbsup:

                Single 4s are OK, but man I love dual quads on a Hemi. Mine is a 572 with a pair of 850 TQs that I built on an Indy crossram....runs awesome at idle, cruise and WOT.

                TQ11.jpg
                 
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