66 273 Carb Decision

Fuel and Air Systems

  1. Michael Brisebois

    Michael Brisebois FABO Gold Member FABO Gold Member

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    I'm considering an Edelbrock 1403 (500cfm) for my 66 Barracuda with a 273. I have a "street performer" for the manifold.

    There's nothing special about the engine...is this enough, or perhaps too much carb?
     
  2. toolmanmike

    toolmanmike FABO Staff Staff Member FABO Gold Member

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    I think the original HP carb was around 535 cfm. A 500 would be fine even on a 2 barrel engine.
     
  3. Del

    Del Papa66Bcuda

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    I'm running a Edelbrock 600 on my 273 works great
     
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    • txas2step

      txas2step FABO Gold Member FABO Gold Member

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      The 500 cfm 1403 will be perfect for your stock 2 barrel motor. Might consider adding a Isky E4 cam depending on engine condition and more engine down time.
       
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      • 66fs

        66fs Well-Known Member

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        500 cfm Edelbrock works nice. I've run everything up to a 750 cfm TQ and Q-Jet on a 273. Set up right they are all fine.
         
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        • dart4forte

          dart4forte FABO Gold Member FABO Gold Member

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          Best carb I’ve run on 273s is the CarterCompetition Series 9636. This was the performance replacement for the 340/383. Not available anymore however they are out there on the net. I just had one rebuilt for my 383.
           
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