Holley Ultra Street Avenger Model 4150 670 CFM 4-Barrel Carburetor - 4-Barrel - Square Bore - Electric Choke - Vacuum Secondary - Dual Inlet - Silver / Blue RG100152XL Protects up to 1

Protects up to 1

Used primarily in drag racing to provide positive locking action to the front wheels to reduce the chance of ''Rolling the Lights'' and produce more effective burn outs for heating the tires

Featuring powerful industrial business band frequencies

Designed for Chevy big-blocks with rectangular port cylinder heads

ΓÇó Notched Secondary Floats w/Jet Extensions

Holley Ultra Street Avenger Model 4150 670 CFM 4-Barrel Carburetor - 4-Barrel - Square Bore - Electric Choke - Vacuum Secondary - Dual Inlet - Silver / Blue RG100152XL Protects up to 1Holley Ultra Street Avenger Carburetor 0 86670BL 4 bbl 670 CFM Model 4150 Blue Anodized Billet Alum Metering Block Base Plate w Gold Hardware Vacuum Secondary Electric Choke Aluminum Ultra High Strength And Durability Ultra Cool Modernized Looks 4 Corner Idle 4 Vacuum Ports Factory Pre Set Electric Choke Precise Idle Control And Stability Clean Safe Performance Easy To Install And Understand Holley has been the undisputed leader in fuel systems for