Air/Fuel Delivery Parts for Carbureted & Fuel Injected Engines

Cram the right air/fuel ratio into your engine and you create incredible horsepower. Summit Racing has everything you need to find that mix, starting with carburetors...

Cram the right air/fuel ratio into your engine and you create incredible horsepower. Summit Racing has everything you need to find that mix, starting with carburetors for street to strip, plus intake manifolds ranging from stock-height replacements to hood-busting tunnel rams. If you’e ready to advance to fuel injection, we’ve got you covered with injectors, manifolds, fuel rails, sensors, and complete performance EFI conversion kits. We’ve also got cold air intakes, fuel pumps, fuel filters, superchargers, turbochargers, nitrous kits, methanol injection kits, hood scoops, and air filters—there’s no excuse for starving...

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Aeromotive Universal Bypass Regulators

Aeromotive universal bypass fuel pressure regulators are dual purpose—for use with fuel systems in street or track applications. They feature adjustable base pressure and are ideal for vehicles/systems where superior flow and pressure control are desired. The regulators are available in different styles and pressure ranges, and for fuels such as gasoline, diesel, and flex.

4.72 out of 5 stars ( 182 )

$174.99

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$252.00

Tanks Inc. Adjustable Fuel Pressure Regulators

Tanks Inc. adjustable fuel pressure regulators allow you to dial in the proper pressure for optimum fuel performance. These billet aluminum bypass kits are available for either carbureted or EFI setups and include adapter fittings and port plug. Getting fuel from your tank to your engine, excess back to your tank, and making sure your carburetor/injectors get the perfect pressure is a big, important job. Fortunately, Tanks adjustable fuel pressure regulators are up to the challenge! Order the regulator designed for your application.

4.02 out of 5 stars ( 113 )

$98.99

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$145.99

Aeromotive Extreme Flow EFI Fuel Pressure Regulators

Control your fuel pressure with one of these Aeromotive Extreme Flow EFI fuel pressure regulators. They're manufactured from durable aluminum, then anodized for maximum protection. The regulators include a standard spring (installed) that supports 30-75 psi base fuel pressure and a high pressure spring (included) to support 75-120 psi base fuel pressure. Aeromotive Extreme Flow EFI fuel pressure units also support vacuum and boost reference on a 1:1 ratio.

5.0 out of 5 stars ( 13 )

$262.99

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$312.95

Holley Bypass Fuel Pressure Regulator Kits

Holley bypass fuel pressure regulator kits are part of a complete line of fuel system products from Holley. Offering several different kits, each features a billet or diecast aluminum regulator with an adjustable psi for precise fuel pressure changes and they are finished for corrosion resistance and good looks. The regulators are fitted with a 1/8 in. NPT gauge port and include an Earl's fuel pressure gauge, three adapter fittings, a barbed fitting for the vacuum port, a mounting bracket, and all necessary hardware. Choose the kit to best fit your project's needs and performance.

3.61 out of 5 stars ( 31 )

$140.95

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$357.95

Aeromotive A1000 Gen-II EFI Fuel Pressure Regulators

Aeromotive A1000 Gen-II EFI fuel pressure regulators feature excellent control, superb durability, and a high-flow design suited for medium to high-horsepower powerplants. These units have been downsized and lightened up, and yet remain as incredible as ever. They're compatible with alcohol or gasoline, have a 1/8 in. NPT gauge port, and are available in either -6, -8, or -10 AN inlets with a -6 return. Keep your vehicle's engine roaring with Aeromotive A1000 Gen-II EFI fuel pressure regulators.

5.0 out of 5 stars ( 6 )

$243.94

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$247.35

Holley Carburetor Bypass Style Fuel Pressure Regulators

Holley carburetor bypass style fuel pressure regulators are designed for systems that require a return line back to the tank. They're used for carbureted applications only, and are preset at 7 psi. The regulators are made of aluminum and feature a natural or black finish.

4.07 out of 5 stars ( 205 )

$81.09

Aeromotive EFI To Carb Conversion Fuel Pressure Regulators

Aeromotive has a regulator that's ideal for switching to a carbureted fuel system. Aeromotive EFI to carb conversion fuel pressure regulators work with OE return-style EFI systems. They provide an adjustable bypass pressure of 8-16 psi and have adjustable regulated pressure to the carb from 5-9 psi. These regulators have a 3/8 in. return, and inlet and outlet ports for regulated flow. Aeromotive EFI to carb conversion fuel pressure regulators combine new school and old school.

5.0 out of 5 stars ( 17 )

$357.91

Holley Fuel Pressure Regulators

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.

4.27 out of 5 stars ( 315 )

$51.19

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$383.95

Summit Racing™ Fuel Pressure Regulators

Summit Racing™ fuel pressure regulators not only look good, but they work for a living. They come in two adjustable options ranging from 1 to 9 psi, and ideal for use with high-capacity fuel pumps. And to sweeten the deal, we include a chrome mounting bracket and mounting hardware. That'll make folks notice your new regulator.

4.55 out of 5 stars ( 290 )

$40.99

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$42.99

Holley HP Billet Fuel Pressure Regulators

Part of Holley's complete line of fuel system products, Holley HP billet fuel pressure regulators are available in a variety of configurations for carbureted or fuel injected engines. Some versions are even adaptable to either carburetors or EFI. They allow you to upgrade a carbureted system to EFI without replacing the fuel pressure regulator. All HP billet fuel pressure regulators feature a 2-port design, provide for precise fuel pressure adjustments, and are available in your choice of demand (no return line) or by-pass (with a return line) styles. Depending on the model, they are for use only with electric fuel pumps, or with either mechanical or electric pumps. Designed for street/strip applications, they are CNC-machined from 6061 T-6 billet aluminum for strength and have bright dip anodized black bodies with clear dip anodized tops for corrosion resistance and good looks. Whatever your fuel system needs, Holley has you covered. Depending on model, features may include: * Adjustable from 4 to 65 psi for use with EFI or carburetors * 4.5 to 9 psi adjustment range for use with carburetors only * EFI-only models are adjustable from 15 to 65 psi * Two port sizes available, 3/8 in. NPT or -6 AN inlet/outlet and return (where applicable) * Fitting for manifold reference * 1/8 in. NPT gauge port * Boost reference--1:1

3.93 out of 5 stars ( 161 )

$152.95

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$278.95

Aeromotive Compact EFI Fuel Regulators

Aeromotive offers compact EFI regulators for applications producing up to 1,000 hp, where space is at a premium. Their compact design fits small engine compartments while providing big performance. They ideally work with EFI systems where only one inlet is needed.

4.96 out of 5 stars ( 24 )

$181.99

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$324.10

MagnaFuel Carbureted Racing Fuel Pressure Control Units

Unlike many fuel pressure regulators that allow pressure to drop during sudden changes in fuel demand, MagnaFuel carbureted racing fuel pressure control units supply high performance engines with a steady diet of fuel. They feature exclusive pressure control units that control pressure drop during initial launch, gear change, or nitrous activation. They're available in 2 or 4-port configurations with 1/8 in. NPT pressure ports.

4.64 out of 5 stars ( 45 )

$208.99

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$252.99

Aeromotive A1000 Carbureted Bypass Fuel Pressure Regulators

These A1000 carbureted bypass regulators from Aeromotive allow you to convert from fuel injection to carburetion by using your EFI fuel pump. They deliver consistent volume at perfect pressure, right to your carburetor. They feature adjustable base fuel pressure and are perfect for any application, from the street to the track, naturally aspirated or supercharged. Their bypass design provides the ultimate dynamic fuel delivery system.

5.0 out of 5 stars ( 20 )

$209.99

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$302.35

Aeromotive X1 Series Fuel Pressure Regulators

From carbureted to EFI pressures, whether naturally aspirated or employing forced induction, the Aeromotive X1 Series fuel pressure regulators span the entire range, providing dependable fuel pressure regulation. While versatility is one of the X1 regulators' greatest assets, it is far from the only design feature. They also utilize larger inlet/outlet and return ports to accommodate increased flow. Aeromotive X1 Series fuel pressure regulators provide flexible performance that grows along with your fuel system!

4.6 out of 5 stars ( 15 )

$273.99

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$658.30

Summit Racing™ 4-Port Fuel Pressure Regulators

Summit Racing™ 4-port fuel pressure regulators feed your power-hungry engine for maximum performance. Our regulators are crafted from billet aluminum and are anodized, offering a great look under your hood to match their performance. They have a linear rising rate of 1:1 up to 20 PSI of boost, then a rate 0.75:1 once 20 PSI is exceeded. Carbureted or EFI, our Summit Racing™ fuel pressure regulators will easily install and adjust to fine-tune and dial-in your performance.

4.37 out of 5 stars ( 30 )

$93.99

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$111.58

Aeromotive A1000 Injected Bypass Fuel Pressure Regulators

Intended for use with custom fuel rails, Aeromotive A1000 injected bypass fuel pressure regulators feature a design specifically for use with their A1000 fuel pumps. These true billet, alcohol-compatible regulators have a beautiful finish in anodized red and black or a mirror-like, show-quality nickel!

4.54 out of 5 stars ( 13 )

$209.10

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$263.45

Holley Adjustable Fuel Injection Regulators

Holley adjustable fuel injection regulators are able to provide all of the fuel pressure that your high performance, fuel injected vehicle will require. They utilize a special wave spring to maintain constant fuel pressure. Some models are universal fit, while others are designed for specific vehicle applications. The regulators are available for inline or fuel rail mount, with various psi ranges. Select the adjustable unit tailored to your driving needs.

3.96 out of 5 stars ( 45 )

$99.95

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$430.95

Aeromotive Carbureted Adjustable Fuel Pressure Regulators

Aeromotive carbureted adjustable fuel pressure regulators are excellent upgrades from the popular standard 2-port designs. These regulators re-seat after the needle shuts down, preventing pressure creep. They're ideal for carburetor and dedicated nitrous applications where higher flow, quicker response, and less pressure creep are desired. A mounting bracket is included. The units are available with different inlet/outlet options, as well as pressure ranges.

4.63 out of 5 stars ( 73 )

$141.30

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$268.95

MagnaFuel Carbureted Fuel Pressure Regulators

MagnaFuel carbureted fuel pressure regulators feature a unique cartridge design that provides the most stable platform for fuel delivery in the performance industry. They feature a durable metal-to-metal seat for instantaneous response and low maintenance. Two and four-port configurations are available. The boost-reference models provide a 1:1 compensation ratio. They're suitable for drag racing, Circle Track, road racing, mud bog, power boat, and tractor pulling. These regulators offer adjustable base pressure and precise pressure control. MagnaFuel carbureted fuel pressure regulators are machined from billet aircraft aluminum and are anodized for a long-lasting finish.

4.57 out of 5 stars ( 7 )

$149.99

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$256.99

MagnaFuel EFI Fuel Pressure Control Units

MagnaFuel EFI fuel pressure control units feature a unique guided-metering valve assembly to provide a more accurate metering of fuel flow and help reduce the pressure drop that can occur at high or sudden changes in fuel demand. The pressure control units are designed to work with the EFI 600 pump and are available in two sizes--large for applications of up to 2,000+ hp and standard for applications of up to 700 hp. Each of these units has a 1/8 in. NPT pressure port for a gauge, a filtered vent fitting or optional boost reference fitting, and is compatible with racing gasoline and alcohol. The units feature a CNC-machined, aircraft-quality aluminum body and are hand-assembled and flow-tested for maximum performance.

4.85 out of 5 stars ( 26 )

$179.99

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$274.99

Weldon A2040 Series Bypass Regulators

Weldon A2040 Series bypass fuel pressure regulators will exceed your performance expectations. They maintain a steady fuel delivery during dramatic changes in fuel demand, such as WOT conditions, boost application, and gear changes with precision pressure control. A2040 Series regulators are for use with all Weldon pumps, as well as pumps from other manufacturers. Features include: * .281 in. bypass orifice * Fluorosilicone diaphragm * Flows up to 6 gpm * 1/8 in. NPT gauge port * 1/8 in. NPT manifold pressure reference port * Fuel pressure increases on a 1:1 ratio with boost * Two -10 AN pressure ports/-8 AN return port * Billet aircraft aluminum with Mil-Spec anodizing * Compatible with gasoline, methanol, diesel, ethanol, most racing fuels

4.5 out of 5 stars ( 2 )

$225.19

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$241.01

DeatschWerks Fuel Pressure Regulators

DeatschWerks fuel pressure regulators provide the quality, precision, and reliability that your high performance fuel system requires to deliver optimum performance. DW adjustable regulators come in 1,000 and 2,000 hp models, with both featuring dual AN inlets, single bottom mounted AN returns, and semi-compact 60mm footprints for maximum installation flexibility. They utilize stainless steel hardware, nitrile fiber diaphragms, anodized housings, and 100 percent brass-free construction to be compatible with ethanol and methanol. The design of the DeatschWerks fuel pressure regulators will also allow for precision pressure adjustment via their ball-bearing mechanism, combined with a 2 psi-per-turn pressure ratio that makes dialing-in your desired target easy.

5.0 out of 5 stars ( 8 )

$39.00

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$239.00

Holley Dominator Billet Fuel Pressure Regulators

These Holley Dominator billet fuel pressure regulators are designed for use with Holley's Dominator inline fuel pumps or other high-pressure fuel pumps where a return line is needed. They are CNC-machined from 6061-T6 billet aluminum for strength and have a bright dip anodized black body with a clear dip anodized top for corrosion resistance. The regulators include a 1/8 in. NPT female threaded gauge port and are available for both carbureted and fuel injected engines.

4.29 out of 5 stars ( 7 )

$278.95

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$292.95

Radium Engineering Direct Mount Fuel Pressure Regulators

The Radium Engineering Direct Mount Regulator (DMR) is a compact high performance adjustable EFI fuel pressure regulator designed with a unique highly versatile mounting system. It can be mounted directly to a compatible fuel rail port using the included 360 degree swiveling adapter, or mounted remotely away from the fuel rail. The compact size fits in areas with limited space without sacrificing performance. This regulator is safe to use with all gasoline and ethanol blends of fuel. The main inlet port on the regulator is female threaded for 6 AN ORB. A swiveling double-ended adapter is included with the kit that allows the regulator to be used in any compatible 8 AN ORB fuel rail port, such as those found on Radium Engineering fuel rails. The return port on the bottom is threaded for 6 AN ORB. The provided 90-degree 6 AN male fuel return fitting can swivel 360 degrees, permitting a multitude of mounting configurations. Other adapter fittings can be installed in the return port if needed (sold separately). Unlike the previous generation, this DMR has two 1/8 in. NPT side port locations that can be used with a pressure gauge, transducer, temperature probe, etc. Two 1/8 in. NPT plugs are provided. Fuel pressure is dialed in using the preloaded set screw on top of the regulator. Two interchangeable orifices are included with calculated flow diameters to match the fuel pump flow to the regulator. This permits the DMR to be used with practically any horsepower engine. This added precision will resist diaphragm flutter and optimize pressure stability. This design has been tested to regulate over 1,200 liters per hour. What's included: * Fuel Pressure Regulator (black or green anodized top) * Swiveling inlet adapter fitting (for 8 AN ORB fuel rail) * PTFE impregnated 1/8 in. NPT plugs (x2) * 6 AN male swivel (for return line) * Return orifices (silver orifice pre-installed)

5.0 out of 5 stars ( 1 )

$170.95

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