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  1. 4160 carb help

    Engine
    Hey y'all, I bought this Holley 4160 600cfm vac. secondary carb. It looks like someone tried deleting the vacuum function because the hole for the diaphragm was sealed up and there was a screw on the throttle linkage for the secondaries that was adjusted all the way to open with the primaries...
  2. Finding Secondary Jet Size for MAX HP

    Engine
    Alright so I've been ALL OVER the internet trying to find a good answer to this and I really haven't come up with much. How do you find your secondary jet size (with max HP in mind) on a traditional Vacuum Secondary Holley 4 Barrel without an AFR gauge or a drag strip to evaluate E.T.'s and...
  3. sec_link_qjet

    sec_link_qjet

  4. holley_link

    holley_link

  5. qjet_secondary_jet_details

    qjet_secondary_jet_details

  6. Q-JET SECONDARY WELL FILL ORIFICE

    Q-JET SECONDARY WELL FILL ORIFICE

  7. 2ndary rods Q-jet: CH  CM  CV

    2ndary rods Q-jet: CH CM CV

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