750 CFM Supercharger HP Carburetor
Mechanical Secondary-4150
PART# 0-80576S
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$886.95
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$718.16 Holleydays Price
$718.16 Holleydays Price
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Overview
Holley HP™ carburetors have been the standard in racing carburetors for nearly two decades. Powering the biggest names in NASCAR to the Saturday night racer, HP carburetors are the perfect choice for all types of motorsports.
Supercharger HP carburetors are available in 600, 750 and 950 CFM and feature a contoured venturii inlet for balanced air flow, screw in air bleeds for precision tuning capabilities, high flow metering blocks and Dominator style fuel bowls which allow pluming from either side for ease of installation.
Supercharger HP carburetors also have a unique capability that allows their power valves to reference the intake manifold vacuum below the supercharger. This allows the power valve to operate as it should, based off intake manifold vacuum. A power valve provides further enrichment to the main metering system under load (low vacuum) conditions.
Holley HP carburetors are the standard for square bore race carburetors. Race-Ready out of the box!
Features:
- Tumble polished shiny finish for good looks
- Designed for use on the WEIAND® 671 supercharger (big block Chevrolet/Chrysler 392) or WEIAND® 871 supercharger (small block Chevrolet/Chrysler 426)
- Contoured venturri inlet offers balanced airflow for increased horsepower
- Screw in air bleeds for precision tuning capabilities
- Dual 30cc accelerator pumps for additional fuel under initial acceleration
- Dual feed fuel inlets for constant high volume fuel delivery
- 4 corner idle allows you to precisely control your idle system
- Mechanical Secondaries for perfect off the line launches
- Boost referenced power valve for proper enrichment under acceleration
- Throttle lever cut off for clearance on a sideways application
- 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
Specs
| Barrels | 4 |
|---|---|
| Booster | Down Leg |
| Brand | Holley |
| CFM | 750 |
| Choke | None |
| Circuit | 2 |
| Emission Code | 3 |
| Finish | Gold Dichromate |
| Fuel | Gasoline |
| Fuel Inlet | Dual |
| Material | Zinc |
| Model | 4150 |
| Primary Main Jet | 76 |
| Primary Power Valve | 10.5 |
| Primary Pump Nozzle Size | 31 |
| Product Type | 4150 Model Carburetor |
| Secondaries | Mechanical |
| Secondary Main Jet | 87 |
| Secondary Pump Nozzle Size | 31 |
| Supercharged Application | Yes |
| Throttle Bore | 1.688 inch |
| Venturii Size | 1.375 inch |
| Part Number | 0-80576S |
Service Parts
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Fuel Line Kit For Dual side mounted Holley Model 4150 carburetors features 6 -AN Carb Adapters 6061-T6 Fuel Block 0.125 in. NPT Port 8 -AN Fuel Inlet designed for 256 thru 8-71 supercharger kits using carb adapter P/N 7163 or 7163P$425.78Qty:
Emissions
This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing 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
Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.
*Free Shipping & Handling only offered to the contiguous US on orders over $100.
Some parts are not legal for use in California or other states with similar regulations.
