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Holley vacuum secondary diaphragms will replace your existing worn-out diaphragms. They are made from a high performance rubber material and will fit most Holley carburetors with vacuum secondaries.
( 49 )
$63.59
$57.25
On Sale
These Summit Racing™ vacuum secondary upgrade Pro Packs can help you modify your carburetor's initial operating and full end rpm. They include an assortment of vacuum secondary springs, so you can choose which is best for your engine combination. They also include a quick-change housing and cover that allow you to make fast changes in no time at all. Optimize your engine rpm and tune-in your carburetor with one of these Summit Racing™ vacuum secondary upgrade Pro Packs.
( 20 )
$61.92
$55.73
On Sale
Holley offers vacuum secondary carburetor accessories that can be used as replacements or for use in upgrading your present carburetor. From diaphragms to spring kits, covers to quick-change kits and more, Holley has the part accessories you need to keep your carburetor at peak performance.
( 35 )
$99.95
Quick Fuel offers these replacement carburetor vacuum secondary diaphragms to get your carburetor working like it should. The diaphragm on a vacuum-operated secondary carburetor needs to be in good shape and free of leaks, or else it may not open at the right time, or at all, causing a serious loss in power. These Quick Fuel carburetor vacuum secondary diaphragms are perfect replacements for your old, worn-out diaphragms that could be robbing you of potential power and performance.
( 2 )
$53.29
Mikuni is the undisputed leader in fuel disbursement technology, and their vacuum fuel pumps are the popular choice when replacement fuel pumps are needed. In addition, Mikuni offers different styles, sizes, flow rates, and other options to suit your specific applications. When you have to replace a fuel pump, or if you're looking to upgrade your OEM pump, you can entrust Mikuni vacuum fuel pumps to fulfill all of your requirements.
( 10 )
$54.99
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$77.99
Nitrous Express vacuum sensors are for data-logging oil pan vacuum with your Maximizer 5 nitrous controller. Expand the use of your Max 5 with these valuable components.
Not Yet Reviewed
$76.43
AED billet carburetor base plates are CNC-machined from 6061 alloy to strict tolerances for an exact fit and then anodized for durability and good looks. These carburetor base plates are available with or without vacuum ports, offering added performance. These billet carburetor components are a must for severe duty and come with the AED advantage--quality and price!
( 1 )
$94.99
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$99.99
These Proform performance carburetor rebuild kits include machined needle and seat assemblies, accelerator pump diaphragms, and precision non-stick die-cut gaskets with nylon inlet nut and bowl screw gaskets. They can be used with any racing gasoline, so they make an excellent choice for your street rod, race car, and even daily driver. Bring new life back to your carburetor with one of these Proform performance carburetor rebuild kits.
( 51 )
$59.99
Moroso fuel pump block-off plates are designed to block-off the fuel pump mounting boss when a mechanical fuel pump is not being used. These plates are made of anodized blue aluminum or high-luster triple chrome plated steel.
( 60 )
$60.99
On Sale
Holley fuel pressure regulators are designed to provide the correct fuel pressure for any high performance vehicle. They're available in a variety of configurations and pressure ranges for both universal and vehicle-specific applications.
( 314 )
$73.29
On Sale
When it's time to rebuild your Demon carburetor, you'll need one of these Demon Carburetion carburetor rebuild kits. They include every possible gasket and seal you'll need, along with many parts not included in other kits, like detailed instructions and a power valve. Some kits include standard gaskets for fuel bowl, metering block, and bowl screws.
( 154 )
$59.95
Upgrade your carburetor with Proform secondary metering block conversions. They take the place of the carburetor's original metering plate. The block is made of billet aluminum and anodized for good looks and a long life.
( 2 )
$99.95
Summit Racing™ 50MM blow-off valves are a pressure release system that takes the load off your turbocharger when the throttle is suddenly closed, preventing damage to both the turbo and your engine. These valves are adjustable from 0 to 50 psi, making them ideal for most boosted applications. Machined from aluminum and black anodized for durability, these blow-off valves offer a quality look for any turbo setup. They include vacuum fittings, aluminum weld flange, V-band assembly, and springs.
( 16 )
$69.99
Summit Bucks
To keep your vehicle running in tip-top form, ACDelco throttle body repair kits help solve the problem of low vacuum. It's the easiest fuel component you'll ever rebuild. Spruce up the throttle body with carb cleaner and dry it well; then use these kits to replace hardware, gaskets, and everything necessary to reseal your throttle body.
( 55 )
$53.99
The opening and closing of fuel injectors creates pressure pulses in the fuel rail which can lead to unstable fuel pressure. In order to achieve a safe and consistent rail pressure, a Radium Engineering fuel pulse damper (FPD) is often necessary. The FPD's internal diaphragm will absorb oscillating pulses and stabilize fuel pressure. This correction can be measured throughout the RPM range and often help idle surge, especially with high-flow injectors. A fuel pulse damper can also solve erratic lean air/fuel ratio spikes, commonly experienced as "stumbling," that are difficult to tune out. What makes Radium FPDs unique?: Along with having the flexibilty of using common fittings, Radium Engineering FPD's use a vacuum/boost reference port which allows for proper fuel pulse damper performance even at elevated fuel pressures. This becomes essential for boosted systems that use a 1:1 rising rate fuel pressure regulator. Features: The anodized aluminum housing features two selectable threaded male fittings. The 8 AN ORB version seals using a FKM O-ring, while the 3/8 in. NPT variation seals with the tapered pipe threads. * The FPDs can be mounted at any possible angle including upside down. For best results, the damper should be mounted directly onto the fuel rail(s). These products are safe for use with all fuel types, including alcohol blends such as E85. (Not recommended for the low-pressure side of mechanical fuel pumps.) Included: * Anodized and laser engraved aluminum top, R=range or XR=extra range * Anodized aluminum body with male threads, 8 AN ORB or 3/8 in. NPT * Stainless steel hardware * Rubber vacuum hose, 4mm I.D. * Vacuum hose Y-fitting
Not Yet Reviewed
$85.45
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$94.95
Radium Engineering's Venturi jet pump kits are designed for high-flow aftermarket pumps and includes three different Venturi orifices to match a wide range of pump flow rates. The Radium jet pump is an effective device for drawing fuel from one side of a fuel tank to the other. Fuel flowing through the venturi creates vacuum in the perpendicular port. The Venturi jet pump uses a machined aluminum housing that is anodized, and laser engraved. Kit includes three interchangeable orifices that were precisely calculated, and vacuum pressure tested with multiple pump combinations. All hose barb connections are compatible with 5/16 in. or 3/8 in. ID hose. Also, the crossover siphon port can be easily adapted to common hoses as it uses 6AN ORB (9/16 in.-18 O-ring) female threads.
( 1 )
$85.45
Standard Motor fuel pressure regulators ensure that your vehicle's fuel supply is precisely metered for optimum mileage and performance. Defective fuel pressure regulators most often develop excessive pressures that create an overly rich air/fuel mixture, robbing mileage and performance. Similarly, if the pressure regulator diaphragm leaks through its vacuum hose into the engine intake manifold, the fuel mixture will also become extremely rich. Don't take chances with your fuel supply—rely on Standard Motor Products for your vehicle's fuel system needs. Order the replacement regulator designed for your application.
( 47 )
$51.99
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$104.99
Holley billet fuel pressure regulator brackets are designed to mount to the passenger side carb studs on your 4-barrel carburetor. The mounting location lends itself to easy plumbing of the inlet and outlet fittings, and shortens the distance to the float bowls for optimum fuel pressure control. These brackets are made to clear double pumper throttle linkage, electric and manual chokes, and other vacuum ports. They're made from billet aluminum for durability and longevity.
( 10 )
$64.35
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$70.39
On Sale
Looking for remote mounting brackets for modern 3-wire Bosch sensors used in GM LS engines? Aeromotive VaporWorx MAP sensor mounting bracket/blocks can be your solution. Compact and rugged, these kits come with everything needed to remote mount your sensor, including the electrical plug and components. They are ideal for mounting the Bosch-style 3-wire MAP sensor and for dynamometer operators looking for a simple to use and adapt system. Features and contents: * 6061 Type III hard coat anodized aluminum * 3-pin plug, terminals, and seals * Brass barb fitting for 1/8 in. hose x 1/8 in. NPT thread * Sufficient clearance to use larger hoses or AN fittings for vacuum line * MAP sensor hold-down screw * Stainless steel mounting screws * Four feet of vacuum hose
( 1 )
$64.70
$58.23
Radium Engineering fuel pressure regulators are designed with billet aluminum housings that are anodized for a superior finish and laser etched. Providing a convenient package for plumbing and mounting, the compact housings feature two main high-pressure ports threaded for 6AN ORB, a 6AN male return port, and a 1/8 NPT female port for a gauge, pressure transducer, and the like. Radium regulators are available without a top or with a genuine Bosch 3.0 Bar (43.5 psi) or 4.0 Bar (58.2 psi) static top vacuum referenced with a 1:1 ratio and are NOT adjustable. They are secured with a stainless steel snap ring and can easily be removed using snap-ring pliers. Fittings, plug, bracket, and stainless steel hardware are included. Choose the kit to best suit your needs.
( 2 )
$66.45
Replace your existing metering block with Proform's standard replacement billet metering blocks. They are designed for use with all 2300, 4150, and 4160 models, except carburetors with an accelerator pump transfer tube or reverse-idle system. The billet-machined blocks virtually eliminate porosity problems and will improve throttle response over stock "universal" performance metering blocks. The metering blocks maintain the original timed spark or ported vacuum tube and are compatible with standard fuel bowl and metering block gaskets.
( 13 )
$105.95
Restore lost horsepower caused by vacuum leaks or worn-out parts with one of these JET carburetor rebuild kits. Your carb regulates the precise amount of fuel and air to maximize engine performance, but sealing components need to be updated periodically. JET rebuild kits are available for a variety of carburetors, such as Holley, Quadrajet, and Rochester, and they include all parts needed for your specific make/model--gaskets, seals, O-rings, needle and seat assemblies, and accelerator pumps. Find the rebuild kit to match your carburetor specs, and experience the efficiency upgrade of JET Performance.
( 14 )
$51.71
Granatelli Motor Sports' 50mm blow-off valves feature a 50mm design, compact size, and lightweight construction. These pressure release systems are designed to take the load off your turbocharger when the throttle is suddenly closed to help reduce the risk of damage to both the turbo and your engine. These BOVs are adjustable, making them ideal for many boosted applications. These 50mm blow-off valves are machined from top-grade aluminum and black anodized for added durability, and include the vacuum fittings, aluminum weld flange, the spring, and V-band assembly.
( 1 )
$74.81
Turn up the boost with Vibrant Performance manual boost controllers! These lightweight, compact controllers are one of the easiest and most affordable ways to squeeze more horsepower and torque from your turbocharged vehicle. Vibrant Performance manual boost controllers feature a unique integrated dial that lets you precisely set your boost, while eliminating the risk of over-boosting that can occur using other manual boost controllers. Vibrant Performance even includes an adjustment key that you can carry on your key chain to easily adjust your boost whenever you wish! They're CNC-machined from T6061 billet aluminum and premium-grade brass and include 18 in. of silicone vacuum hose and installation instructions.
( 2 )
$107.99
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