holley "quick-jet" metering block ID help

Discussion in 'Holley' started by DEADMANSCURVE, Jun 26, 2016.

  1. DEADMANSCURVE

    DEADMANSCURVE my first word : truck

    hi .
    got these on a real decent lookin holley #4781 dbl pump 850 carb .
    no numbers or ID on 'em ?
    anyone have any company info , history with them , etc ?
    use 'em ?
    unload 'em ?
    they look pretty handy . but if tricky to use may not want to , sell 'em , and just replace with standard blocks .
    thanks for any info . del
     

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  2. DEADMANSCURVE

    DEADMANSCURVE my first word : truck

    kept searching internet - looks like maybe brad urban carb shop speed blocks . favorable comments , and uses standard holley jets . they mentioned the weber power plates and speed blocks but they sound like they use special jets , and they look real expensive . these look simple enough . but urban passed away and inserts may not be available anymore if needed . he was a big name in carb setup awhile ago .
    still curious if anyone has used these before though .
     
  3. DEADMANSCURVE

    DEADMANSCURVE my first word : truck

    gonna order standard replacement AED metering blocks from summit and sell 850 DP carb with both . that'll give somebody some flexibility .
    still appreciate any info if out there . thanks .
    FYI : got the AED blocks today - look real nice/oem . comes without jets but has the bowl "slosh" vents and idle screws . about $50 each .
     

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    Last edited: Jul 20, 2016

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