Holley Street Avenger Model 4150 570 CFM 4-Barrel Carburetor - Square Bore - Electric Choke - Vacuum Secondary - Dual Inlet - Silver R1-G Steel bracket has three 3/4"

Steel bracket has three 3/4" holes

Coils have always had to compromise voltage output against current output

Powerful 18A Output (6A x 3CH) @12VDC

Capacitive Discharge Ignition

Holley Street Avenger Model 4150 570 CFM 4-Barrel Carburetor - Square Bore - Electric Choke - Vacuum Secondary - Dual Inlet - Silver R1-G Steel bracket has three 3/4"Holley Street Avenger Carburetor 0 80570 4 bbl 570 CFM Vacuum Secondary Automatic Choke Over 300 hp Use Carb (0 80670) 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 Vehicle Applications: 1969 1974 Chevrolet K30 Pickup 1969 1981 Chevrolet Corvette 1969 1969 Mercury Cougar 1975 1978