
650 CFM ALUMINUM STREET HP MECH SEC
650 CFM - 4150 - Mechanical Secondaries - Shiny - Gasoline
Overview
Tire smoking performance has never been so affordable! The all new Aluminum Street HPs weigh up to 40% less and are even easier on your wallet. Holley is proud to introduce the all new Aluminum Street HP™. They utilize the best features from Holley's Race Bred 4150 HP™ carbs, but are tamed for street and light competition use. The Street HP features an aluminum contoured main body design taken from the race winning 4150 HP™ and has a tumble polished shiny finish and screw in air bleeds for precision tuning capabilities. The metering system includes a timed spark port for a vacuum advance distributor and is calibrated for a hot street/strip engine setup for outstanding throttle response, drivability and maximum performance. A street HP base plate is used on the 650 and 750 cfm models so there are plenty of vacuum ports for power brakes, PCV, etc. The Aluminum Street HP takes all the great features from the race bred HP and the Double Pumper and combines them into the perfect street/strip carburetor.
Features:
- Aluminum construction for weight savings and long lasting good looks
- Optimized street/strip calibration for outstanding throttle response and drivability
- Contoured venturi inlet offers balanced airflow for increased horsepower
- Screw in air bleeds for precision tuning capabilities
- Four corner idle for precise idle control
- Mechanical secondaries for awesome tire turning performance
- Dual accelerator pumps for additional fuel under initial acceleration
- Dual feed fuel inlets for constant high volume fuel delivery
- Available in 650, 750, 850, and 950 CFM versions
- Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
- 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
- Compatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required.
About Holley

Holley Performance Brands is the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, fuel injection, and fuel systems.
Specs
Barrel Quantity | 4 |
---|---|
Barrels | 4 |
Body Color | Polished |
Body Finish | Polished |
Booster | Straight |
Booster Design | Straight |
Brand | Holley |
Carburetor Material | Aluminum |
Carburetor Use | Performance and Race |
Category | Carburetors and Components |
CFM | 650 |
Choke | None |
Condition | New |
Cubic Feet Per Minute Rating | 650 |
Emission Code | 3 |
Finish | Shiny |
Flange Type | Square/4150 |
Fuel | Gasoline |
Grade Type | Performance |
Linkage Attached | Yes |
Marine Approved | No |
Marine Use | No |
Material | Aluminum |
Model | 4150 |
Mounting Hole Quantity | 4 |
Primary Jet Diameter | 69 |
Primary Main Jet | 69 |
Primary Power Valve | 6.5 |
Primary Pump Nozzle Size | 28 |
Product Type | Carburetor |
Secondaries | Mechanical |
Secondary Main Jet | 75 |
Secondary Pump Nozzle Size | 29 |
Spacer Included | No |
Supercharged Application | No |
Throttle Bore | 1.688 inch |
Venturii Size | 1.250 inch |
Warranty | Limited 90 Day |
UPC | 090127731413 |
Part Number | 0-82651SA |
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This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
- 1965 and older U.S. manufactured California Certified vehicles
- 1967 and older U.S. manufactured Federally Certified vehicles
- 1967 and older Foreign manufactured vehicle
WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
The following vehicles are considered Emissions Controlled Vehicles:
- 1966 and newer U.S. manufactured California Certified vehicles
- 1968 and newer U.S. manufactured Federally Certified vehicles
- 1968 and newer Foreign manufactured vehicle
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