HOLLEY part description

Product Description

Ultra Double Pumper® Carburetor

Application Summary

Electric Choke Mechanical Secondaries

Features & Benefits

  • Metering Blocks Base Plate For Good Looks True Gasket Sealing
  • Optimized Street/Strip Calibration That Works Out Of The Box
  • Factory Preset Electric Choke For Easy Startups
  • Mechanical Secondaries For Awesome Tire Turning Performance
  • 4 Corner Idle Allows You To Precisely Control Your Idle System
  • Clear Fuel Level Sight Glass No Mess Fuel Level Adjustments
  • Aluminum Construction For A 43% Weight Savings
  • Lightweight Vehicles w/Auto Trans w/High Stall/Low Gearing
  • 100% Wet Flow Tested By Holley Technicians
  • Arrives Ready To Run

Holley Performance Emission Code 3: This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only 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. The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street. 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

Product Attributes

Barrel Four
Billet Color Black
Booster Type Down Leg
Carburetor Type 4150
CFM 750
Choke Electric
Emission Without EGR
Finish Shiny
Flange Square Bore
Fuel Inlet Dual
Fuel Type Gasoline
Material Aluminum
Primary Main Jet 73
Primary Power Valve 6.5
Secondary Main Jet 80
Secondary Pump Nozzle Size 31
Secondary Type Mechanical
Supercharged Application No
Throttle Bore 1.688 in.
Type Automotive
Usage Street/Strip
Vacuum Port Quantity 1 timed (spark); 2 full; 1 PCV

Additional Information

Country of Origin (Primary) US
Harmonized Tariff Code (Schedule B) 8409915085
Harmonized Tariff Code (HTS) 8409915085
NAFTA Preference Criterion Code B
Remanufactured Part N
UPC 00090127664674
Holley® has been the undisputed leader in fuel systems, powering nearly every NHRA Pro-Stock champion and Monster Energy NASCAR Cup team with its expansive line of carburetors for over 40 years. Today, its EFI products and products for GM's popular LS engine are what dominate the performance world and the LS scene respectively. But aside from carburetors, Holley is also widely recognized for its intake manifolds, performance fuel pumps, and engine dress-up products. And to better serve its customers, it partnered with numerous other companies, such as MSD, a company developing electronics for the entire powertrain, and Powerteq, the world leader in performance tuning in the automotive market.

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