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Holley 2 bbl. 350 or 500cfm (pic included)

Discussion in 'The Hokey Ass Message Board' started by Slick mo fo, Jan 8, 2007.

  1. Slick mo fo
    Joined: Feb 21, 2003
    Posts: 135

    Slick mo fo
    Member
    from San Diego

    I've got a couple Holley 2 bbls. but not sure what hey are.
    I have a book that says;
    350cfm has 1.375 throttle bores
    500cfm has 1.69 throttle bores

    The 2 I have, have 1.48 throttle bores. Both have 7508-1 on the choke horn.
    I was told the one with the little red triangle was a 500 w/electric choke when I bought it.
    The other I was told "might be" a 350 mech. choke. It was pulled off a Pinto motor.


    Here are some pictures.
    Let me know if you need more info.
    Thanks in advance....
    [​IMG]
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  2. 53sled
    Joined: Jul 5, 2005
    Posts: 5,821

    53sled
    Member
    from KCMO

  3. Slick mo fo
    Joined: Feb 21, 2003
    Posts: 135

    Slick mo fo
    Member
    from San Diego

  4. k9racer
    Joined: Jan 20, 2003
    Posts: 3,117

    k9racer
    Member

    7448 350 cfm also has 1/4 thread on air cleaner stud.. 4412 is 500 cfm 5/16 thread air cleaner bolt..
     
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  5. Slick mo fo
    Joined: Feb 21, 2003
    Posts: 135

    Slick mo fo
    Member
    from San Diego

    both have 1/4" thread.
     
  6. dave lewis
    Joined: Dec 12, 2006
    Posts: 1,323

    dave lewis
    ALLIANCE MEMBER

    hey guys, sorry i missed this thread. i have an illustrated parts and spec book from holley. lists all holley carbs by #.. this # 7508 is universal replacement ford 61 to 74 ,221 cid to 429, all trans ( see kickdown linkage in pics) no cfm listed, but the throttle bores work out to 425 cfm or so..
    i will be glad to help id any holley carbs...start a thread or pm me.
    dave lewis
     

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