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Product Summary

Universal Fit, 4-Barrel Carburetor Barrels, 770 CFM CFM

  • Factory preset electric choke ensures easy startups
  • 100% wet-flow tested by Holley technicians
  • Optimized street calibration
  • Aluminum construction has 44% weight savings
  • 700-799 CFM range

Key Specs

Carburetor Barrels4-Barrel
Fuel TypeGasoline
Choke TypeElectric
CFM Range700-799 CFM
CFM770 CFM

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Holley 0-83770 Details

Holley's Street Avenger series carburetors have been taken to the next level. Street Avenger carburetors are known to bolt on right out of the box, so what could be better than a Holley Street Avenger carburetor? How about one in aluminum? They save weight and look great. The tumble polished aluminum finish will keep its shine for a long time to come or it can be hand polished to a show quality shine. The new Aluminum Avenger carburetors have the same great features as their zinc counterparts such as a quick change vacuum secondary for easy fine tuning; four vacuum ports for all necessary vacuum accessories; factory preset electric choke for easy start ups; built-in fuel filters; and an included fuel line kit so there are no unnecessary trips back to the parts store. Aluminum Avengers feature the same optimized street calibration as the zinc version so you know they will run great on your vehicle. Another new feature on the Aluminum Street Avenger is a clear fuel level sight glass for easy, no mess float adjustments. The Avenger series are the first carburetors to have a limited lifetime warranty. With a great warranty like that and the included comprehensive instruction manual, you can count on years of worry free service.

  • Features a tumble polished finish - can also be hand polished
  • Optimized street calibration that works-out-of-the-box
  • Factory preset electric choke for easy startups
  • Glass fuel level sight windows for easy, safe float adjustments
  • 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)
  • 4 corner idle allows you to precisely control your idle system
  • Aluminum construction for a 44% weight savings
  • Ford A/T kickdown
  • 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!

Charts

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Holley 0-83770 Specifications

KEY SPECS
MFG. Part #0-83770
BrandHolley
Carburetor Barrels4-Barrel
Fuel TypeGasoline
Choke TypeElectric
CFM Range700-799 CFM
CFM770 CFM
Carburetor Flange Type4-Barrel Square Bore
FinishShiny
Material TypeAluminum
ColorNatural
Secondary TypeVacuum
Fuel Inlet TypeDual
New or RemanufacturedNew
Supercharged ApplicationNo
GENERAL
Speedway Motors Catalog Part #425-083770
Model4150
BoosterStraight Leg
Emission Code3
Throttle Bore1.688 inch
Vacuum Ports1 timed (spark) port, 2 full, and 1 PCV port
Bolt Hole Pattern5.160" x 5.625"
GTIN Code090127662557
Sold in QuantityEach