Holley; 750CFM Aluminum Street HP Carburetor

Holley's new Aluminum Street HP utilize the best features from Holley's Race Bred 4150 HP carbs, but is 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 so there are plenty of vacuum ports for power brakes, PCV, etc.

• Aluminum construction for weight savings and long lasting good looks
• Contoured venturi inlet offers balanced airflow for increased horsepower
• Optimized street /strip calibration that works out-of-the-box
• 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
• Intended for lightweight vehicles with manual transmissions or automatics transmissions with high stall and low gearing

• Barrels: 4
• Booster: Down Leg
• CFM: 750
• Choke: None
• Finish: Shiny
• Fuel: Gasoline
• High Speed Air Bleed: 36
• Idle Air Bleed Size: 71
• Material: Aluminum
• Model: 4150
• Primary Main Jet: 77
• Primary Power Valve: 4.5
• Primary Pump Nozzle Size: 31
• Secondaries: Mechanical
• Secondary Main Jet: 84
• Secondary Pump Nozzle Size: 28
• Supercharged Application: No
• Throttle Bore: 1.688"
• Venturii Size: 1.375"

Important: Not for use on pollution controlled vehicles. See Emission Notes below.

For (PPCV) Pre-Pollution Controlled Vehicles Only: Legal for use on all vehicles that were manufactured before emissions control regulations were imposed. Check your state law before ordering.

For Racing Use Only: This product is intended for vehicles that are exclusively designated as a racing or off-road vehicle only. This product is not legal for use on vehicles that are operated on public highways. Not for use on a street-driven vehicle.

• 1965 and Older, USA Manufactured, California Certified Vehicles
• 1967 and Older, USA Manufactured, Federally Certified Vehicles