Holley 750 CFM Aluminum Street HP Mech Sec Carburetor

Get ready for an exhilarating ride without breaking the bank! The all-new Aluminum Street HP carburetors are designed to weigh up to 40% less, making them a fantastic choice for both your vehicle and your wallet.

Holley is excited to present the Aluminum Street HP™ carburetor! This model takes the best features from our race-bred 4150 HP™ carburetors and fine-tunes them for street and light competition use. With an aluminum contoured main body inspired by our race-winning 4150 HP™, this carburetor boasts a beautifully polished finish and screw-in air bleeds for precise tuning.

The metering system is equipped with a timed spark port, perfect for vacuum advance distributors, and is calibrated for hot street and strip engine setups. You can expect outstanding throttle response, great drivability, and impressive performance. Plus, the Street HP base plate provides plenty of vacuum ports for power brakes, PCV, and more.

The Aluminum Street HP combines the best of both worlds from the race-bred HP and the Double Pumper, creating the ideal carburetor for street and strip enthusiasts.

• Instructions for Part# 0-82751SA
• Carburetor Numerical Listing for Part #0-82751SA
• Instructions for Part# 0-82750SA
• Carburetor Numerical Listing for Part #0-82750SA

• Lightweight aluminum construction for durability and stylish looks
• Optimized calibration for street and strip applications, ensuring excellent throttle response
• Contoured venturi inlet for balanced airflow and increased horsepower
• Screw-in air bleeds allow for precise tuning adjustments
• Four corner idle for enhanced idle control
• Mechanical secondaries deliver impressive performance
• Dual accelerator pumps provide extra fuel for quick acceleration
• Dual feed fuel inlets ensure a steady high-volume fuel supply
• Available in 650, 750, 850, and 950 CFM options
• Perfect for lightweight vehicles with manual transmissions or automatics featuring high stall and low gearing
• Every unit is 100% wet-flow tested by Holley technicians, ensuring it's ready to run right out of the box!
• Compatible with GM, Chrysler, and Ford A/T kickdown linkage; additional parts may be needed.

• Barrels: 4
• Booster: Down Leg
• CFM: 750
• Choke: None
• Emission Code: 3
• 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
• Product Type: 4150 Model Carburetor
• Secondaries: Mechanical
• Secondary Main Jet: 84
• Secondary Pump Nozzle Size: 28
• Supercharged Application: No
• Throttle Bore: 1.688 inch
• Venturi Size: 1.375 inch
• Warranty: Limited 90 Day

• This carburetor features a square bore flange bolt pattern. It can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with a 5 3/16" x 5 5/8" bolt pattern. If you're using a spreadbore style intake manifold, you will need an adapter for installation, similar to the Mr. Gasket #1932.