Butler Performance Inc. » Holley
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR Sprint Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress-up products for street performance, race and marine applications. Find all your Holley products here at Butler LS.
Holley Categories
Items 1-30 of 34
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Butler Pontiac Power at its best. Butler Core or customer block making over 500hp and 515 lbs tq on pump gas. Features Butler/Ross rotating assembly with Eagle crank and Butler...More Details »
This beautiful build features a Sniper QJet EFI system with a March Black Onyx Serpentine System. It's internal components are a Butler Ross BU assembly 4.181" bore and 4.250" stroke with a...More Details »
This build featured an IAII aftermarket black, Forged 4.5" stroke Crank, Custom Ross Pistons in 4.350" bore, Comp Solid Roller Cam, Edelbrock CNC Round Port Heads, Holley 950 Ultra XP Carb....More Details »
Top off your Pontiac engine with an air cleaner or new filter from Butler Performance.
Performance calibrated street & off road carbs loaded with easy to use features
Vacuum secondaries for use on wide variety of vehicles
Available up to 870 CFM
Carb Accessories is where you will find linkage, lines, plates, and more for carburetors and more.
The world famous Holley Dominator
For big inch, high horsepower engines
The ultimate big bore racing carburetor
Tire turning power for hot street or race vehicles
Mechanical secondaries means your foot controls rear throttle blade opening
For light vehicles with low gearing and manual trans or automatics with high stall converter
Dual Sync Sensors generate two signals, one for crank and one for cam. Using this setup allows for individual timing control when using ignition boxes. These distributors have what is called a...More Details »
Ready to update your carbureted system to an electronic fuel injection system? Butler Performance has been installing and testing many systems from FAST, Edelbrock, Holley, and more for a long...More Details »
Electric in-line fuel pumps for higher performance applications where more fuel is needed. Easy to install and maintain.
For Carbureted applications. These pumps can be installed in new tanks or retrofit for your existing stock or stock replacement tank.
For EFI and carbureted applications. These pumps can be installed in new EFI ready tanks or retrofit for your existing stock or stock replacement tank. With the addition of a fuel bypass regulator,...More Details »
Holley just brought EFI within range! Introducing Sniper EFI! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride!...More Details »
Are you tired of rebuilding the 50+ year old Rochester Quadrajet™ (Q-Jet) on your classic Chevrolet, GMC, Buick, Oldsmobile, or Pontiac? Introducing Sniper EFI Quadrajet™. The first bolt on...More Details »
The Sniper Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The Sniper...More Details »
If you have been hesitant on switching to EFI because you like the traditional look of a carburetor? There is no more need to worry! Holley has you covered with the new Terminator Stealth Throttle...More Details »
The original race ready carb that started it all!
Performance calibrated and race ready
Up to 1000 CFM
These boxes are are capable of producing full power sparks throughout the entire rpm range. It draws its energy directly from the battery where a custom wound transformer steps it up to over 460...More Details »
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Holley Products
Description: 8 AN Or 6AN Inlet/outlet. Black anodized billet fuel line
Item #: HLY-34-39
Condition:
New
Price: $343.95
Description: Holley Stud Kit (GM Long)
Item #: HLY-37-11QFT
Condition:
New
Price: $10.30
Description: Carburetor Diaphragm 50cc GFLT w/o Screws GFLT Diaphragms Are Compatible For Use w/All Alcohol Base Fuels
Item #: HLY-135-9
Condition:
New
Price: $25.82
Description: Clear Bowl Sight Plugs for Holley Carbs
Item #: MOR-65226
Condition:
New
Price: $10.99
Description: 255 LPH Drop-In Retrofit Carbureted Fuel System Supports up to 700 Carb HP (HP Rating @ 6 PSI at 13.5 Volts / 10.4 AMP Draw), Returnless
Item #: HLY-12-129
Condition:
New
Price: $372.95
Description: Dual fuel lines for Holley 4150 Ultra XP Carburetors w -8 O-ring XP Bowls. Fuel line with single 8AN inlet, fittings with Pro-Lite 350 hose
Features:
The fuel lines are 9.75” long (standard...More Details »
Item #: HLY-34-43
Condition:
New
Price: $189.95
Description: Dual fuel lines for Holley 4150 Ultra XP Carburetors w -8 O-ring XP Bowls. Fuel line with single 6AN inlet, fittings with Pro-Lite 350 hose
Features:
The fuel lines are 9.75” long (standard...More Details »
Item #: HLY-34-42
Condition:
New
Price: $157.95
Description: 10 micron post filter with dual 3/8" barbs
Item #: HLY-562-1
Condition:
New
Price: $30.70
Description: Holley EFI universal bypass fuel pressure regulators are for use with fuel systems in street or track applications.
Item #: HLY-12-894KIT
Condition:
New
Price: $209.95
Description: Chrome Die Cast Fuel Regulator - 60 PSI
Item #: HLY-12-882
Condition:
New
Price: $85.95
Description: Includes complete fuel system consisting of; 40ft of 3/8” Vapor Guard™ Fuel Hose, NO PUMP, Filters, necessary hardware and bulkhead fitting to return fuel into the tank!
Item #: HLY-526-10
Condition:
New
Price: $328.95
Description: Includes complete fuel system consisting of; 40ft of 3/8” Vapor Guard™ Fuel Hose, 12-920 Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank!
Item #: HLY-526-7
Condition:
New
Price: $471.95
Description: Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems.
Anti-Seize pre-applied to sensor threads.
Service Oxygen Sensor for Sniper EFI Systems
Service Oxygen Sensor for Terminator X Systems
Item #: HLY-554-155
Condition:
New
Price: $139.95
Description:
w/Mounting Hardware
Standard finish
4412 requires P/N 45-465
Item #: HLY-45-224
Condition:
New
Price: $90.97
Description: Street/Strip Carbureted Applications
Two Port
Adjustable from 4.5 to 9 PSI
Item #: HLY-12-803
Condition:
New
Price: $46.52
Description: Pontiac HyperSpark distributor- plug and play with all Holley Sniper EFI systems
Item #: HLY-565-314BK
Condition:
New
Price: $368.95
Description: Pontiac HyperSpark distributor- plug and play with all Holley Sniper EFI systems
Item #: HLY-565-314
Condition:
New
Price: $368.95
Description: Holley Kickdown Throttle Bracket for 700R-4 Transmissions
Item #: HLY-49-121QFT
Condition:
New
Price: $31.00
Description: Open Carburetor Flange Gasket 1050 Carbs
Item #: HLY-108-84-2
Condition:
New
Price: $16.51
Description: Open Carburetor Flange Gasket Standard Holley Carbs
Item #: HLY-108-10
Condition:
New
Price: $11.33
Description: Holley EFI distributors are designed to plug and play with Holley EFI systems. The design includes dual Hall Effect sensors for the crankshaft and camshaft signals.
Item #: HLY-565-207BK
Condition:
New
Price: $450.95
Description: Holley EFI distributors are designed to plug and play with Holley EFI systems. The design includes dual Hall Effect sensors for the crankshaft and camshaft signals.
Item #: HLY-565-207
Condition:
New
Price: $450.95
Description: The #1 EFI conversion system just got better! Introducing Sniper 2 EFI - a self-tuning, easy-to-install, EFI conversion for common 4-barrel (4150 flange) style carburetors. We took everything that...More Details »
Item #: HLY-550-511-3X
Condition:
New
Price: $1,299.95
Description: The #1 EFI conversion system just got better! Introducing Sniper 2 EFI - a self-tuning, easy-to-install, EFI conversion for common 4-barrel (4150 flange) style carburetors. We took everything that...More Details »
Item #: HLY-550-510-3X
Condition:
New
Price: $1,299.95
Description: Billet Sniper EFI Fuel Pressure Regulator with Bracket
Item #: HLY-19-392
Condition:
New
Price: $164.95
Description: 1250 HP Forced Induction Sniper EFI 4 Barrel Fuel Injection Conversion - Self-Tuning Kit + Handheld EFI Monitor - Black Ceramic Finish
Item #: HLY-550-513
Condition:
New
Price: $1,947.95
Description: 1250 HP Forced Induction Sniper EFI 4 Barrel Fuel Injection Conversion - Self-Tuning Kit + Handheld EFI Monitor - Classic Gold Finish
Item #: HLY-550-517
Condition:
New
Price: $1,899.95
Description: 1250 HP Forced Induction Sniper EFI 4 Barrel Fuel Injection Conversion - Self-Tuning Kit + Handheld EFI Monitor - Shiny Finish
Item #: HLY-550-512
Condition:
New
Price: $1,947.95
Description: 650 HP Sniper EFI 4 Barrel Fuel Injection Conversion - Self-Tuning Kit + Handheld EFI Monitor - Black Ceramic Finish
Item #: HLY-550-519
Condition:
New
Price: $1,557.95
Description: 650 HP Sniper EFI 4 Barrel Fuel Injection Conversion - Self-Tuning Kit + Handheld EFI Monitor - Classic Gold Finish
Item #: HLY-550-520
Condition:
New
Price: $1,557.95