Best Holley 4150 Vacuum Ports

Product Description

This carburetor is ideal for street performance and features a Next Gen needle and seat design which eliminates the need for external float level adjustment. It has side-hung floats which are factory-set for optimum fuel levels at 3 to 6 PSI with no adjustment necessary. The float bowls, main bodies, and vacuum secondary caps have a refined appearance and upgraded choke caps are included for smoother engine warm-up and better cold drivability.

From the Manufacturer

FEATURES

• Our best selling Holley carburetor
• 100% wet-flow tested and street calibrated
• All-metal parts(no plastic stuff)
• New unique shiny / chromate dip finish
• Universal calibration (1964 & earlier)
• Manual choke
• Side hung float bowls
• Power valve blow-out protection
• Vacuum secondaries
• Not For Sale in California on Pollution Controlled Motor Vehicles

WARRANTY
Limited warranty

The Street HP uses the best features from Holley’s race Bred 4150 HP carburetors, but tamed for street and light competition use. The contoured main body from the 4150 HP has a tumble polished shiny finish. The metering system includes a timed spark port for a vacuum advance distributor and is calibrated for a hot street and strip engine setup for outstanding throttle response and drivability. A street HP base plate is used so there are plenty of vacuum ports for power brakes, PCV, etc.

The Ultra Double Pumper Carburetors feature all aluminum construction and are equipped with metering blocks and a base plate made from 6061-T6 billet aluminum. Three different anodized color options (Red, Blue or Black) allow for a personalized look while maintaining the ultra high strength and durability you get from billet. They weigh in at approximately 5 pounds less than a comparable zinc carburetor. The new Ultra Double Pumper Carburetors have an enhanced fuel curve for optimum performance, with many more features such as aluminum construction, anodized billet aluminum metering blocks and base plate, four corner idle for precise idle control, mechanical secondaries for great performance, clear fuel level sight plugs for easy, no mess fuel level adjustments, Ford automatic transmission kickdown for use on popular Ford transmissions, four vacuum ports for all necessary vacuum accessories and for the first time on a Double Pumper, factory pre-set electric choke for easy, fast cold start-ups. The clean, polished look coupled with Red, Blue or Black metering blocks and throttle body will certainly set your ride apart whether you are at the show or track.

The Holley EFI die cast aluminum four barrel throttle body is designed to fit on any square bore (4150 style) intake manifold. This new MPFI Race Throttle Body shares the same air entry area design that powers every NASCAR Sprint Cup Series(TM) car! The unit includes the Throttle Position Sensor (TPS), Intake Air Temperature Sensor (IAT), and Idle Air Control (IAC) motor. It has four 1-3/4 throttle plates. It features non progressive throttle linkage, for quickest throttle response, but can be converted to progressive operation by removing and adjusting the installed linkage. It also features one 3/8 and one 3/16 full manifold vacuum ports!

Holley street carburetor with vacuum secondaries , electric choke, and also with power valve blowout protection. It includes center hung floats, dual feed fuel inlet, and a needle and seat design for external float level adjustment. It is calibrated for street performance and has a dichromate finish.

This carburetor features maximum low-end torque and horsepower output, exceptional fuel control over rough terrain, steep angle idle, and clear sight plugs for setting the initial fuel level. The fuel metering block eliminates fuel spillover through the boosters at extreme angles to allow for 40-degree climbing, 30-degree side hill maneuvers, and nose down descents without stalling or flooding. The electric choke ensures great cold starting and is designed to prevent accidental over-adjustment while square fuel bowls with side hung floats provide precise fuel control. It also includes 4 vacuum ports with PCV, spark, power brake, and vacuum accessories for easy installation and great off-road performance.

This carburetor is designed for the street enthusiast and has an adjustable vacuum secondary which is calibrated specifically for optimal street performance. It offers up to 6-percent more acceleration or 5-percent better fuel economy with a simple spring change. It includes a fuel metering system which provides precise fuel metering for great low-end torque, acceleration, and top-end horsepower. It also includes 4 vacuum ports and an adjustable needle and seat to accommodate varying fuel pressure levels. The built-in fuel inlet filters are cleaner, safer, and are used in primary and secondary fuel bowls.

Does your engine seem like it is out of breath? You can increase engine breathing with a Holley high-air –flow throttle body! Fully CNC machined from 6061 billet aluminum, these new Holley throttle bodies are designed to use the stock TPS and IAC to simplify installation. They are bright dipped clear anodized for long lasting good looks and corrosion protection. They also include all the necessary vacuum ports and linkage to facilitate installation. Do not get left in the dust. New Holley high-flow throttle bodies are the ticket to ride.

This cast EFI intake elbow allows the use of GM LS or Ford 5.0L throttle bodies on any intake manifold w/ the 4150 mounting flange. Slotted mounting holes & dual throttle cable mounting bracket bosses allow the elbow & throttle body to be mounted forward, sideways, or rearward. Features (4) vacuum ports, MAP sensor port, machined / port matched to 4150 gasket, and 100° throttle body angle for extra hood clearance.

Product Description

This carburetor provides optimal street performance with low-end torque, great acceleration, and top-end horsepower. It features a tunable metering system, fuel filters in the primary and secondary fuel bowls, and center-hung floats with external float adjustments and sight plugs. It has a manual choke, emissions accessory ports, and a dual-feed conversion fuel line.

From the Manufacturer

Introducing The Holley Street Avenger carburetor. The first true performance carburetor designed, dyno tested, street proven and calibrated specifically for the street.

FEATURES

• Ready-to-run performance for street cars
• 100% wet-flow tested and street calibrated
• Electric choke
• Model 4150 with center hung floats
• Quick-change vacuum secondary
• Not For Sale in California on Pollution Controlled Motor Vehicles
• Ford A/T kickdown
• Power valve blow-out protection
• 4 Vacuum ports (PCV, power brake, spark, accessories)
• 100% wet-flow tested and street calibrated

WARRANTY
Lifetime limited warranty.

The Ultra Double Pumper Carburetors feature all aluminum construction and are equipped with metering blocks and a base plate made from 6061-T6 billet aluminum. Three different anodized color options (Red, Blue or Black) allow for a personalized look while maintaining the ultra high strength and durability you get from billet. They weigh in at approximately 5 pounds less than a comparable zinc carburetor. The new Ultra Double Pumper Carburetors have an enhanced fuel curve for optimum performance, with many more features such as aluminum construction, anodized billet aluminum metering blocks and base plate, four corner idle for precise idle control, mechanical secondaries for great performance, clear fuel level sight plugs for easy, no mess fuel level adjustments, Ford automatic transmission kickdown for use on popular Ford transmissions, four vacuum ports for all necessary vacuum accessories and for the first time on a Double Pumper, factory pre-set electric choke for easy, fast cold start-ups. The clean, polished look coupled with Red, Blue or Black metering blocks and throttle body will certainly set your ride apart whether you are at the show or track.

Truck Avenger Carburetor 4 bbl. 670 cfm Model 4150 Stock To 400 HP Vacuum Secondary Electric Choke Dichromate Aluminum Not Legal For Sale/Use In California

The Street HP uses the best features from Holley’s race Bred 4150 HP carburetors, but tamed for street and light competition use. The contoured main body from the 4150 HP has a tumble polished shiny finish. The metering system includes a timed spark port for a vacuum advance distributor and is calibrated for a hot street and strip engine setup for outstanding throttle response and drivability. A street HP base plate is used so there are plenty of vacuum ports for power brakes, PCV, etc.

All Holley Marine Carburetors are designed to meet Coast Guard specifications. A marine Carburetors fuel metering system is calibrated to compensate for unique engine loads found on boats. The J-style vent tubes direct spilt fuel/fumes back into the carburetor for safe operation while on rough waters.

The Aluminum Truck Avenger carburetors have great features like their zinc counterparts: quick change vacuum secondary for easy fine tuning, 4 vacuum ports for all necessary vacuum accessories, manual choke for precise cold start control & a built-in fuel filter. Aluminum Truck Avenger is perfect for small blocks or stock big block engines.

Features:
• Aluminum Construction for added weight savings
• Gold Dichromate finish for extreme off road environments
• Single feed fuel inlet for ease of installation
• Optimized off-road calibration works out-of-the-box
• Vacuum secondaries allow use on a wide variety of vehicles. Quick Change vacuum housing cap allows tuning for performance/fuel economy (springs included)
• Compatible w/ GM, Chrysler & Ford A/T kickdown linkage. Additional parts may be required
• One piece off-road vent tube eliminates fuel spillover during extreme maneuvers
• Intended for off-road/off-angle use. Unique metering block designed for flood free operation up to 40 degrees while climbing & 30 degrees during side hill maneuvers & “nose down” descents
• 100% wet-flow tested by Holley technicians assures it arrives run-ready

Specs:
• Barrels: 4
• Booster: Annular/Straight
• CFM: 670
• Choke: Manual
• Emission Code: 3
• Finish: Dichromate Gold
• Fuel: Gasoline
• Fuel Inlet: Single
• Material: Aluminum
• Model: 4150
• Primary Main Jet: 68
• Primary Power Valve: 6.5
• Primary Pump Nozzle Size: 28
• Product Type: 4150 Model Carburetor
• Secondaries: Vacuum
• Secondary Main Jet: 89
• Supercharged Application: No
• Throttle Bore: 1.688 Inch
• Vacuum Ports: 1 timed (spark) port, 2 full & 1 PCV port