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Holley
Holley UK – Carburetors, EFI Systems & Performance Parts Holley is a legendary name in the world of performance. Since 1903, Holley has been at the forefront of fuelling technology, powering everything from classic hot rods to modern race cars....
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Holley 12-893
Holley Billet EFI Return Style Fuel Pressure Regulator
EFI Return Style Regulator 59.5 PSI Black Finish
Part TypeFuel Pressure Regulator£256.99£241.00 inc VAT£200.83 ex VAT -
Holley 12-892
Holley Billet EFI Return Style Fuel Pressure Regulator
EFI Return Style Regulator 59.5 PSI Black/Clear Finish
Part TypeFuel Pressure Regulator£256.99£241.00 inc VAT£200.83 ex VAT -
Holley 12-890
100 GPH HP In-line Fuel Pump
*Pump gas compatible for intermittent or under 90...
Part TypeElectric Fuel Pump£586.00£482.99 inc VAT£402.49 ex VAT -
Holley 12-887kit
Holley Die Cast Bypass Fuel Pressure Regulator Kit
The mounting holes in the regulator are not...
Part TypeFuel Pressure Regulator£161.99 inc VAT£134.99 ex VAT -
Holley 12-887
Die Cast By Pass Style Carbureted Fuel Pressure Regulators
The mounting holes in the regulator are not...
Part TypeFuel Pressure Regulator£86.99 inc VAT£72.49 ex VAT -
Holley 12-886
Die Cast EFI By Pass Style Fuel Pressure Regulators
The mounting holes in the regulator are not...
Part TypeFuel Pressure Regulator£106.99 inc VAT£89.16 ex VAT -
Holley 12-883
Double Adjustable Fuel Regulator
Regulator is compatible with Diesel #1 and Diesel...
Part TypeFuel Pressure Regulator£425.99£208.99 inc VAT£174.16 ex VAT -
Holley 12-881kit
Holley Die Cast Bypass Fuel Pressure Regulator Kit
The mounting holes in the regulator are not...
Part TypeFuel Pressure Regulator£161.99 inc VAT£134.99 ex VAT -
Holley 12-881
Die Cast By Pass Style Carbureted Fuel Pressure Regulators
The mounting holes in the regulator are not...
Part TypeFuel Pressure Regulator£86.99 inc VAT£72.49 ex VAT -
Holley 12-880kit
Carb/EFI Adjustable Billet By-Pass Regulator-6AN Kit
Carb/EFI adjustable billet by-pass return style fuel pressure...
Part TypeFuel Pressure Regulator£292.99£275.99 inc VAT£229.99 ex VAT -
Holley 12-880
Carb/EFI Adjustable Billet By-Pass Regulator-6AN
Carb/EFI adjustable billet by-pass return style fuel pressure...
Part TypeFuel Pressure Regulator£212.99£193.99 inc VAT£161.66 ex VAT -
Holley 12-879kit
Adjustable Billet By-Pass Regulator 3/8 NPT Kit
Adjustable billet by-pass return style fuel pressure regulator...
Part TypeFuel Pressure Regulator£272.99£256.99 inc VAT£214.16 ex VAT -
Holley 12-879
Adjustable Billet By-Pass Regulator-3/8" NPT
Adjustable billet by-pass return style fuel pressure regulator...
Part TypeFuel Pressure Regulator£212.99£193.99 inc VAT£161.66 ex VAT -
Holley 12-877
Shim for Retrofit Module Mounting into Poly Fuel Tank
Stainless Steel Mounting Flange Shim
Part TypeFuel Pump Mounting Kit£23.99 inc VAT£19.99 ex VAT -
Holley 12-874
Rollover Valve for EFI In Tank Retrofit Modules
Rollover Valve for 12-130, 12-131, 12-132,12-133
Part TypeFuel Tank Roll Over Valve£40.99 inc VAT£34.16 ex VAT -
Holley 12-865
4 Port VR Series Fuel Pressure Regulator
Regulator is compatible with Diesel #1 and Diesel...
Part TypeFuel Pressure Regulator£436.99£385.00 inc VAT£320.83 ex VAT -
Holley 12-852
2 Port VR Series Fuel Pressure Regulator
Regulator is compatible with Diesel #1 and Diesel...
Part TypeFuel Pressure Regulator£425.99£376.00 inc VAT£313.33 ex VAT -
Holley 12-848
Dominator Billet EFI By Pass Fuel Pressure Regulator
Hot Street/Race EFI Applications Two Port Adjustable from...
Part TypeFuel Pressure Regulator£298.00£262.00 inc VAT£218.33 ex VAT -
Holley 12-847
Dominator Billet Carbureted By Pass Fuel Pressure Regulator
Regulator is compatible with Diesel #1 and Diesel...
Part TypeFuel Pressure Regulator£307.99£271.00 inc VAT£225.83 ex VAT -
Holley 12-846
HP Billet EFI By Pass Fuel Pressure Regulator
Regulator is compatible with Diesel #1 and Diesel...
Part TypeFuel Pressure Regulator£283.99£233.99 inc VAT£194.99 ex VAT -
Holley 12-845
HP Billet Carbureted By Pass Fuel Pressure Regulator
Regulator is compatible with Diesel #1 and Diesel...
Part TypeFuel Pressure Regulator£298.00£244.99 inc VAT£204.16 ex VAT -
Holley 12-843
HP Billet Carbureted Fuel Pressure Regulator
Regulator is compatible with Diesel #1 and Diesel...
Part TypeFuel Pressure Regulator£239.99£211.99 inc VAT£176.66 ex VAT -
Holley 12-842
HP Billet Carbureted By Pass w/ Idle Bleed Fuel Pressure Regulator
Street/Strip Carbureted Applications Two Port Adjustable from 4.5...
Part TypeFuel Pressure Regulator£205.00£178.00 inc VAT£148.33 ex VAT -
Holley 12-841kit
Holley Billet Bypass Fuel Pressure Regulator Kit
4.5-9 Psi - Fittings and Gauge Included
Part TypeFuel Pressure Regulator£380.99£358.99 inc VAT£299.16 ex VAT -
Holley 12-841
HP Billet Carbureted By Pass Fuel Pressure Regulator
Regulator is compatible with Diesel #1 and Diesel...
Part TypeFuel Pressure Regulator£172.00£163.00 inc VAT£135.83 ex VAT
Holley UK – Carburetors, EFI Systems & Performance Parts
Holley is a legendary name in the world of performance. Since 1903, Holley has been at the forefront of fuelling technology, powering everything from classic hot rods to modern race cars. Known for their carburetors, EFI systems, fuel pumps, and complete performance solutions, Holley remains the first choice for enthusiasts worldwide.
The Holley Legacy
Holley carburetors became an icon in American muscle cars and motorsport, appearing on millions of vehicles over the decades. Today, Holley’s reach extends far beyond carburetion, with a massive catalogue that includes EFI systems, intake manifolds, exhaust solutions, ignition systems, and even full fuel delivery kits.
Why Enthusiasts Choose Holley
- Unmatched History: Over 100 years of performance innovation.
- Complete Solutions: Everything from fuelling to exhaust under one brand family.
- Motorsport Proven: Trusted in drag racing, circle track, and street performance applications.
- Modern Technology: Cutting-edge EFI systems that bring classic builds into the future.
Popular Holley Products
- Holley 4150 & 4160 Carburetors
- Sniper EFI Conversion Kits
- Holley Terminator X Engine Management
- Fuel Pumps & Regulators
- Holley Intake Manifolds
Holley in the UK
Billy’s Speed Shop brings Holley performance parts to the UK, eliminating the cost and hassle of importing. Whether you’re restoring a classic V8, tuning a modern LS swap, or building a drag car, Holley offers the solutions you need – available now with fast UK delivery.
Fuel your project with Holley UK performance parts – order today at Billy’s Speed Shop.



