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carter avs carbs

Discussion in 'The Hokey Ass Message Board' started by redmoon, Apr 3, 2011.

  1. redmoon
    Joined:
    Feb 26, 2011
    Posts:
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    Location:
    Joelton tn

    redmoon Member

    I've got two carter avs carbs. would by chance anyone know where I could find out what the cfm's are on these things one is a b9-4615sa and the other is a j8-4617s thanks for any help
  2. dartracer
    Joined:
    Apr 18, 2009
    Posts:
    65
    Location:
    Strasburg CO.

    dartracer Member

    They are 625 cfms. The 4615-s is off of a 69 383 dart or Barracuda with a 4spd. the 4617-s is 69 383 with an automatic.
  3. ronk16
    Joined:
    Mar 27, 2010
    Posts:
    279
    Location:
    niagara falls new york

    ronk16
    ALLIANCE MEMBER

    what carb nos were used in the dual quad set ups, i`ve got a half dozen good cores and need just 2 for my set up????
  4. redmoon
    Joined:
    Feb 26, 2011
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    Location:
    Joelton tn

    redmoon Member

    they look huge for 625, been looking all weekend for the cfms on these things, they are setting on a dual intake for a ford 302, so 1250 cfms is alot more doable, the guy I got them from said they were 860 and 890 cfm way overkill for all most any 302 thanks for the info
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  5. redmoon
    Joined:
    Feb 26, 2011
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    Location:
    Joelton tn

    redmoon Member

    what kinda setup ya got ?
  6. redmoon
    Joined:
    Feb 26, 2011
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    Location:
    Joelton tn

    redmoon Member

    did some measuring could one be a 650 and the other a 750 ?
  7. shmoozo
    Joined:
    Aug 14, 2007
    Posts:
    622
    Location:
    Media, PA

    shmoozo Member

    Is it just me or does anybody else think that 1250 CFM sounds like way too much carb for a streetable 302? My calculations based on the standard formula given by Holly (see the bottom of the web page linked HERE) suggest that just one 625 CFM carb would be enough to support an engine that size up to about 7000 rpm.

    :confused:

    (Of course, I'm assuming this is for a street engine running on pump gas rather than for an alcohol burning all-out race engine, but ...)
  8. redmoon
    Joined:
    Feb 26, 2011
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    Location:
    Joelton tn

    redmoon Member

    it is WAY to much I guess I should have said that it is possible to run that much carberation on a built to the max 302.
  9. Falcon Gasser
    Joined:
    Aug 29, 2007
    Posts:
    910
    Location:
    Great Lakes

    Falcon Gasser Member

    Set up dual Edelbrock 600 c.f.m.'s ( AFB Knock off's) on a 302 on this Comet with no issue. Yes it is a 1/4 mile car only but idles fine around the pits with out loading up. The AVS you can tighten the rear air door and it can be tuned for lots of applications, this car ran a 750 cfm AVS for a year and it worked out really good.

    Jon

    [​IMG]
  10. Reman
    Joined:
    Jul 8, 2010
    Posts:
    241
    Location:
    Florida

    Reman Member

    AVS were great carbs from the factory on the Mopars. I had a 69 dart 340 with one and that car ran flawlessly, and fast. It also got great gas mileage when driven the speed limit (which never happened),lol. Ron
  11. redmoon
    Joined:
    Feb 26, 2011
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    Location:
    Joelton tn

    redmoon Member

    They are for sale $200 do want to deal with shipping local pick up only

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