Holley 750 CFM 4-Barrel Classic Finish Double Pumper Carburetor w/ Electric Choke
Highlights
- 750 CFM Airflow Rating
- Electric Choke Control
- Mechanical Secondaries
- Dual Accelerator Pumps
Holley 750 CFM 4-Barrel Classic Finish Double Pumper Carburetor with Electric Choke.
Upgrade your fuel system with this Holley 750 CFM double pumper carburetor! It supports square-bore intake manifolds and provides controlled fuel delivery for street and strip applications.
Features and Benefits:
- 750 CFM airflow supports performance setups
- Electric choke controls cold start operation
- Mechanical secondaries improve throttle response
- Dual accelerator pumps add fuel under load
- Dual fuel inlets maintain consistent fuel delivery
- Durable zinc construction with classic finish
- 4150 design fits square bore intake manifolds
For a steady fuel supply, this carburetor includes dual fuel inlets. An electric choke allows precise control of warm-up without manual adjustment. It features mechanical secondaries and dual accelerator pumps to supply additional fuel during acceleration.
Vehicle Fitment:
- 1964-1972 Chevelle
- 1964-1972 El Camino
- 1967-1973 Camaro
Specifications:
- Barrels: 4
- Booster: Straight
- CFM: 750
- Choke: Electric
- Emission Code: 3
- Finish: Classic
- Fuel: Gasoline
- Fuel Inlet: Dual
- Material: Zinc
- Model: 4150
- Primary Main Jet: 70
- Primary Power Valve: 6.5
- Primary Pump Nozzle Size: 28
- Secondaries: Mechanical
- Secondary Main Jet: 81
- Secondary Pump Nozzle Size: 31
- Supercharged Application: No
- Throttle Bore: 1.688”
- Vacuum Ports: 1 Timed (Spark) Port, 1 Full, and 1 PCV Port
California Residents: Proposition 65 Warning
Related Categories: Restomod, Carburetors
Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:
- 1965 and older U.S. manufactured California certified vehicles
- 1967 and older U.S. manufactured federally certified vehicles
Installation Difficulty

Novice skill is required for this installation.
Installation Instructions
Vehicle Fitment
This product will fit the following Camaro years:
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
This product will fit the following Chevelle years:
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
This product will fit the following El Camino years:
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,













