Holley HP Street Carbs

Discussion in 'High Performance Modifications' started by Orange71, Dec 27, 2010.

  1. Orange71

    Orange71 Veteran Member Lifetime Gold Member

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    I'm looking to get a new carb and I can't make up my mind on which one to get. I pretty much made up my mind to try one of the Holley HP Street mechanical secondary carbs but which size - 650 or 750 cfm?
    My engine/car specs are here post #21 - http://www.nastyz28.com/forum/showthread.php?t=183365&page=2

    I drive my car on the street and while I drive it hard it rarely sees the north side of 6000-6200rpms. Most of the driving is weekend cruising where I'll drive to local shows/cruise-ins or for 2-3 hours and 100-200 miles.
    Thanks
     
  2. PolarBear

    PolarBear Veteran Member Lifetime Gold Member

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    650 would probably be better for a weekend cruiser
     
  3. sal70ss

    sal70ss Veteran Member

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    650 planty
     
  4. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    I agree with the 650, should be all that engine can use either on the street or strip.
     
  5. hhott71

    hhott71 R.I.P 11/19/18 Lifetime Gold Member

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    I'm using a 650 to race with.
     
  6. Orange71

    Orange71 Veteran Member Lifetime Gold Member

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    Thanks guys. Pretty unanimous on the 650.
    Using Holley's calculator it recommended the 650 with a red line of 6000 rpms, recommended both with 6200 rpms, and the 750 with 6500 rpms.
     
  7. 5spd540

    5spd540 Veteran Member Lifetime Gold Member

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    I would agree 650
     

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