Holley 0-80541-2 Classic HP Carburetor 650 CFM 4150 Mechanical Secondaries Gold Dichromate Gasoline

Holley Hptm 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!

Features and Benefits:

• 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 percent wet-flow tested by Holley technicians to assure it arrives ready to run!

Associated Comments:

• 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.

Details:

• Barrel Quantity: 4.0
• Body Color: Gold Dichromate
• Body Finish: Plated
• Booster: Straight
• Booster Design: Straight
• CFM: 650.0
• Carburetor Material: Aluminium
• Carburetor Use: Performance and Race
• Circuit: 2.0
• Condition: New
• Cubic Feet Per Minute Rating: 650.0
• Finish: Gold Dichromate
• Flange Type: Square/4150
• Fuel Type: Gasoline
• Fuel Inlet: Dual
• Grade Type: Performance
• High Speed Air Bleed: 45.0
• Idle Air Bleed Size: 72.0
• Linkage Attached: Yes
• Marine Approved: No
• Marine Use: No
• Material: Aluminium
• Model: 4150
• Mounting Hole Quantity: 4.0
• Primary Jet Diameter: 70.0
• Primary Main Jet: 70.0
• Primary Power Valve: 6.5
• Primary Pump Nozzle Size: 28.0
• Secondaries: Mechanical
• Secondary Main Jet: 70.0
• Secondary Power Valve: 6.5
• Secondary Pump Nozzle Size: 29.0
• Spacer Included: No
• Supercharged Application: No
• Throttle Bore: 1.688 inch
• Venturii Size: 1.250 inch
• Warranty: Manufacturer's Limited 90 Day Warranty

Installation Guide: Download PDF

Installation / Product Video: Watch on YouTube

⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.