Holley 4150 Ultra HP Series Carburetors


Holley
Holley 4150 Ultra HP Series Carburetors

Trust Holley Hardcore Carburetors for Serious Performance

Based on the 4150 HP carb and available in 650, 750, or 950 cfm,
the Ultra line has billet metering blocks and baseplate. Changeable emulsion jets, idle feed restrictors & power valve restrictors enable infinite tuning of nearly any engine.

Shared Specifications
  • Calibrated for gasoline
  • Nonstick gaskets
  • High-strength sealing surfaces
  • Built-in oversized glass sight windows
  • Center-hung dual inlet floats
  • Notched floats and jet extensions for continuous fuel delivery
  • Power valve blowout protection
  • Four corner idle system
  • Buttonhead throttle plate screws for less air restriction
  • Stainless steel throttle plates for corrosion protection
  • Contoured Venturi inlet provides more balanced airflow, which increases power
  • Spun-in boosters won't fall into engine
  • Progressive mechanical secondaries
  • Primary and secondary accelerator pumps are both 30cc
  • 100% wet-flow tested and calibrated
  • Screw-in air bleeds
  • Billet metering blocks and billet baseplate
  • Changeable emulsion jets, idle feed restrictors, and power valve restrictors
  • Dichromate finish

    Spec Variations
  • Offered in 650, 750, or 950 cfm
  • Spun-in boosters are straight or down leg



    		•
    4150 Ultra HP

    		510-0-80674
    		4150 Ultra HP Carburetor
  • 650cfm
  • Straight leg boosters
    View this item
    Installation Instructions for Holley
    		• $919.99
    Ships
    02/22/12

    		510-0-80675
    		4150 Ultra HP Carburetor
  • 750cfm
  • Down leg boosters
    View this item
    Installation Instructions for Holley
    		• $795.99
    Ships

    		510-0-80676
    		4150 Ultra HP Carburetor
  • 950cfm
  • Straight leg boosters
    View this item
    Installation Instructions for Holley
    		• $809.99
    Manufacturer's
    Availability
    Date Unknown

    		510-0-80676-R
    		4150 Ultra HP Carburetor
  • Remanufactured
  • 950cfm
  • Straight leg boosters
    View this item
    Installation Instructions for Holley
    		• $745.99
    Ships