Holley Street Avenger Model 4150 770 CFM 4-Barrel Carburetor - Square Bore - Manual Choke - Vacuum Secondary - Dual Inlet - Silver

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SKU: HLY0-81770
Carburetor, Model 4150, Street Avenger, 4-Barrel, 770 CFM, Square Bore, Manual Choke, Vacuum Secondary, Dual Inlet, Silver, Each

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Holley Street Avenger Carburetor 0-81770 4 bbl - 770 CFM - Vacuum Secondary - Manual Choke - Shiny Zinc - Not Legal For Sale/Use In California

  • Adjustable Vacuum Secondary
  • 4th Generation Power Valve
  • Fuel Metering System
  • Built-In Secondary Fuel Filters
  • External Float Adjustable w/Sight Plug
  • On Vehicle Electric Choke
  • 4 Vacuum Ports
  • Street Ready; Out Of The Box
  • Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

    This model of carburetor has the square bore flange bolt pattern. It can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with 5 3/16" x 5 5/8" bolt pattern. If you have a spreadbore style intake manifold, you will need an adapter to install this carburetor. Similar to the Mr. Gasket #1932.

  • Optimized street calibration that works-out-of-the-box
  • Manual choke (Cable driven, hand operated) for precise cold start control
  • Vacuum secondaries allow use on a wide variety of vehicles. Quick Change vacuum housing cap allows you to tune for performance or fuel economy (springs included)
  • Compatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required.
  • Fuel line kit included so there are no unnecessary trips back to the parts store
  • Limited lifetime warranty - Guaranteed to be free from defects in material and workmanship for the life of the product!
  • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
  • Product Description:

  • Carburetor
  • Model 4150
  • Street Avenger
  • 4-Barrel
  • 770 CFM
  • Square Bore
  • Manual Choke
  • Vacuum Secondary
  • Dual Inlet
  • Silver
  • Sold Individually
  • For over a century Holley has driven the cutting edge of fuel-system design. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Top brands like MSD, Flowmaster, Hurst, Accel, and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything we do.