Notice - Due to the natural color variations of the dichromate plating process, the plating color may vary from casting to casting (within a carburetor) and from carburetor to carburetor. This is considered normal and is not a cosmetic defect. If you desire a carburetor with no color variation, please shop our black and shiny finish carburetors.
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. Classic HP carburetors are available from 390 to 1000 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. Holley HP carburetors are the standard for square bore race carburetors. Race-Ready out of the box!
Gold Dichromate finish for corrosion resistance
Optimized race calibration
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
Progressive Secondaries for perfect off the line launches
Stainless steel throttle plates
Includes notched float and jet extensions
Calibrated for gasoline
100% wet-flow tested by Holley technicians to assure it arrives ready to run!
Barrel Quantity
4
Barrels
4
Body Color
Gold Dichromate
Body Finish
Plated
Booster
Straight
Booster Design
Straight
Brand
Holley
Carburetor Material
Aluminium
Carburetor Use
Performance and Race
CFM
650
Choke
None
Circuit
2
Condition
New
Cubic Feet Per Minute Rating
650
Emission Code
3
Finish
Gold Dichromate
Flange Type
Square/4150
Fuel
Gasoline
Fuel Inlet
Dual
Grade Type
Performance
High Speed Air Bleed
45
Idle Air Bleed Size
72
Linkage Attached
Yes
Marine Approved
No
Marine Use
No
Material
Aluminium
Model
4150
Mounting Hole Quantity
4
Primary Jet Diameter
70
Primary Main Jet
70
Primary Power Valve
6.5
Primary Pump Nozzle Size
28
Product Type
Carburetor
Sale Category
Carburetors and Components
Secondaries
Mechanical
Secondary Main Jet
70
Secondary Power Valve
6.5
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
090127098875
Part Number
0-80541-2
ABOUT HOLLEY PERFORMANCE
For over a century Holley has driven the cutting edge of fuel-system design. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Top brands like MSD, Flowmaster, Hurst, Accel, and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything we do.