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12-704 | 4.5-9PSI FUEL PRESS REGclose
Holley fuel pressure regulators are designed to precisely control the fuel pressure from the fuel pump to the carburetor. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems. Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task. All Holle..
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12-707 | FUEL PRESSURE REG.(80494)close
Holley fuel pressure regulators are designed to precisely control the fuel pressure from the fuel pump to the carburetor. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems. Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task. All Holle..
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12-803 | REG, FUEL PRESSURE 4.5-9 PSI M/Pclose
Holley fuel pressure regulators are designed to precisely control the fuel pressure from the fuel pump to the carburetor. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems. Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task. All Holle..
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12-851 | 2-PORT VR SERIES EFI REGULATOR (40-100 Pclose
The Holley VR Series billet fuel pressure regulators are part of the VR1 and VR2 Series brushless fuel pump systems product line. These regulators can support 3000+ horsepower engines that require high volumes of fuel flow. Both EFI and carbureted versions can be referenced on a 1:1 ratio. They are precision machined from 6061-T6 billet aluminum for strength and durability and feature a black brig..
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12-852 | 2-PORT VR SERIES REGULATOR (4-9 PSI)close
The Holley VR Series billet fuel pressure regulators are part of the VR1 and VR2 Series brushless fuel pump systems product line. These regulators can support 3000+ horsepower engines that require high volumes of fuel flow. Both EFI and carbureted versions can be referenced on a 1:1 ratio. They are precision machined from 6061-T6 billet aluminum for strength and durability and feature a black brig..
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12-864 | 4-PORT VR SERIES EFI REGULATOR (40-100 Pclose
The Holley VR Series billet fuel pressure regulators are part of the VR1 and VR2 Series brushless fuel systems product line. These regulators can support 3000+ horsepower engines that require high volumes of fuel flow. Both EFI and carbureted versions can be referenced on a 1:1 ratio. They are precision machined from 6061-T6 billet aluminum for strength and durability and feature a black bright di..
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12-865 | 4-PORT VR SERIES REGULATOR (4-9 PSI)close
The Holley VR Series billet fuel pressure regulators are part of the VR1 and VR2 Series brushless fuel systems product line. These regulators can support 3000+ horsepower engines that require high volumes of fuel flow. Both EFI and carbureted versions can be referenced on a 1:1 ratio. They are precision machined from 6061-T6 billet aluminum for strength and durability and feature a black bright di..
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12-883 | 2-PORT VR SERIES REG, 10AN, DBL ADJ (4-9close
Holley's new double adjustable fuel pressure regulators are designed for belt or cable driven pumps where fuel flow changes with engine rpm. These regulators are compatible with E85 and alcohol applications. Made from billet aluminum, these regulators are offered in both 2-Port and 4-Port models to complete your fuel system requirements. The idle adjustment design is strategically placed so that n..
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12-884 | 2-PORT VR SERIES REG, 8AN, DBL ADJ (4-9 close
Holley's new double adjustable fuel pressure regulators are designed for belt or cable driven pumps where fuel flow changes with engine rpm. These regulators are compatible with E85 and alcohol applications. Made from billet aluminum, these regulators are offered in both 2-Port and 4-Port models to complete your fuel system requirements. The idle adjustment design is strategically placed so that n..
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12-885 | 4-PORT VR SERIES REG, 8AN, DBL ADJ (4-9 close
Holley's new double adjustable fuel pressure regulators are designed for belt or cable driven pumps where fuel flow changes with engine rpm. These regulators are compatible with E85 and alcohol applications. Made from billet aluminum, these regulators are offered in both 2-Port and 4-Port models to complete your fuel system requirements. The idle adjustment design is strategically placed so that n..
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30-1803QFT | Billet Pressure Regulatorclose
Billet Regulator - Designed for use with a fuel pump that does not need to be bypassed. Black anodized top has a fitting for boost referenced applications and regulator body has port for fuel pressure gauge. Comes with laser cut stainless mounting bracket and hardware. #8 AN O-Ring fittings required. •Designed to operate within 4.5 - 9 PSI; Preset at 7 PSI •.250" (1/4") restriction •Compatible wi..
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30-1899QFT | Billet Bypass Regulator W/Jetclose
Billet Bypass Regulator W/JET - Designed for use with a mechanical fuel pump where fuel pressure is variable. By-Pass feature is restricted with a jet that can be adjusted to set your desired low-side fuel pressure. Blue anodized top has a fitting for boost referenced applications, comes with laser cut stainless mounting bracket and hardware. #8 AN O-Ring fittings required. •Designed to operate w..
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30-1900QFT | Billet Bypass Regulatorclose
Billet Bypass Regulator - Designed for use with an electric fuel pump where fuel pressure is steadily delivered. By-Pass feature is unrestricted and anodized top has a fitting for boost referenced applications. Comes with laser cut stainless mounting bracket and hardware. #8 AN O-Ring fittings required. •Designed to operate within 4.5 - 9 PSI; Preset at 7 PSI •.350" (7/20") restriction •Can be us..
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30-1QFT | Regulator Manifold Capclose
Billet Regulator Manifold Cap - Used to block-off ports on our 30-2, 30-3, and 30-4 billet manifolds. Made of light weight aluminum and O-Ring sealed for leak-free performance. Hardware included, sold individually. • Regulator log cap • Seals off unused regulator ports • Made of lightweight aluminum and O-ring sealed for leak-free performanceBrandQuick FuelColorRedEmission Code5MaterialAluminum..
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30-4803QFT | 4 port Pressure Regulatorclose
Billet 4-port regulator for non-return style applications. •#8 AN O-ring inlet and (4) outlet ports. •Provisions for boost reference and fuel pressure gauge. •Compatible for use with gas, alcohol and E85 fuels. •Can be used with QFT™ billet fuel pressure regulator logs. •Includes mounting bracket. BrandQuick FuelEmission Code5Product TypeRegulatorPart Number30-4803QFT..
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30-4QFT | Regulator Manifold 4 Portclose
Billet Regulator Manifold 4 Port - Machined & anodized manifold features provision for (4) regulators. Can be configured for one, two, or three regulators with the use of 30-1 block-off(s). Comes with stainless steel laser-cut mounting bracket and hardware. #8 AN O-Ring inlet at both ends. • Billet regulator log designed to mount (4) fuel pressure regulators • #8 AN O-ring inlet ports • Designed ..
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30-7023QFT | QFT 4-port regulatorclose
4-Port Regulator designed to provide smooth, consistent and repeatable performance. This regulator is machined from aircraft grade billet aluminum and anodized for added durability and reliable performance. •Hard-coat anodized billet housing. •Supports engines over 650 HP. •#8 AN inlet and 4 x #8 AN outlet ports. •Adjustable from 5-8 PSI. •Fluorocarbon diaphragms and Viton® O-rings. •Stainless st..
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30-7025QFT | QFT 2-port regulatorclose
2-Port Regulator designed to provide smooth, consistent and repeatable performance. This regulator is machined from aircraft garde billet aluminum and anodized for added durability and reliable performance. •Hard-coat anodized billet housing. •Supports engines up to 650 HP. •#10 AN inlet and #8 AN outlet ports. •Adjustable from 5-8 PSI. •Fluorocarbon diaphragms and Viton® O-rings. •Stainless stee..
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30-803QFT | Pressure Regulatorclose
Pressure Regulator - Cast body with powder coated black top. Features 30cc diaphragm and mounting bracket with hardware. 3/8" NPT ports (single inlet, dual outlet). •Supports 4-barrel gas engines up to 600 HP •Designed to operate within 4.5 - 9 PSI range; Preset at 7 PSI •.250" (1/4") restriction •Includes mounting bracket •Includes an 1/8" NPT port for manifold reference Boost Reference 1-1Brand..
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30-804QFT | Low Pressure Regulator 1-4 PSclose
Based on the same technology as our 30-803 fuel pressure regulator, our new low pressure regulator is built with premium components and designed to operate within the 1-4 PSI range. Includes mounting bracket and detailed instructions. 3/8" NPT ports. •Supports 4-barrel gas engines up to 600 HP •.250" (1/4") restriction •Includes mounting bracket •Includes an 1/8" NPT port for manifold reference..
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