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02302NOS | PRO 2 STAGE V8 DOMINATOR SINGLE 4BBL W/1close
Dual Stage Big Shot Nitrous System Pro 2 Stage V8 DominatorFeatures:More Gradual Power Application2 Sets Nitrous/Fuel SolenoidsIncludes 2 Cheater SolenoidsBottle ColorNOS BlueBottle Size10 lbBrandNOSEmission Code4Fuel SolenoidCheaterIncluded Jetting Horsepower150, 200, 225, 250Jet StyleFlareMax Horsepower500Nitrous SolenoidCheaterNumber of Solenoids4Number of Stages2Plate Flange4500 DominatorProdu..
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07003NOS | SNIPER 250 DOMINATOR PLATE KIT close
NOS have built on the very popular, budget friendly, Sniper nitrous kits for those who need a little more power from their engines. The new Sniper 250 kits step up the power potential to an additional 250 horsepower, in a low cost single nitrous plate kit, for the popular carburetors, Holley 4150 (Square Flange) PN 07002NOS, 4500 (Dominator) PN 07003NOS & Spread Bore (Quadra jet) PN 07007NOS. The..
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12600NOS | DOMINATOR 4BBL CHEATERclose
Cheater Injector Plate, w/ Jets & Plumbing, Holley Dominator, V8 - Assure a steady, precise metered flow of nitrous and fuel for reliability. Backed with years of laboratory research, as well as dyno and drag strip testing. NOS Injector Plates are available for those who want to build their own system or upgrade their current nitrous system without having to go through the expense of a new complet..
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12610NOS | DOM. BIG SHOT INJECTOR PLATEclose
Big Shot Injector Plate, w/ Jets & Plumbing, Holley Dominator, V8 - Assure a steady, precise metered flow of nitrous and fuel for reliability. Backed with years of laboratory research, as well as dyno and drag strip testing. NOS Injector Plates are available for those who want to build their own system or upgrade their current nitrous system without having to go through the expense of a new comple..
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12S | PUMP, ELECT/FUEL CARB-DOMESTICclose
Gravity Fed type pump with simple two-wire design. Works on 12 Volt negative ground systems only. Includes fittings and mounting hardware along with easy to follow DIY instructions. Pumps require approximately one amp average draw at maximum delivery. 4-7 PSI, 35 GPH. Universal design for most domestic 4, 6, & 8 cylinder carburetor applications. Not recommended for diesel, methanol, ethanol, E85 o..
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16520NOS | GEN 3 DOMINATOR MICROSWITCH BRACKET KITclose
NOS is proud to release its new billet microswitch bracket kit designed specifically for Holley's Gen 3 Dominator carburetors. This great looking black anodized aluminum bracket features a laser engraved NOS logo. The billet design will not flex or bend allowing consistent nitrous activation every time. Kit includes bracket and microswitch.Features:Fits Holley Gen 3 Dominator CarburetorsBlack ano..
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17-85 | GEN 3 DOMINATOR AIR SCOOP ADAPTER - BLACclose
When using a Gen 3 Dominator, there is no longer a need for a bulky air scoop mount with stands that sandwiches under the carburetor. Holley Gen 3 Dominator air scoop adapters bolt directly to the air cleaner flange of the Gen 3 Dominator and provide a solid mounting point for air scoop trays. No more frustration trying to tune your carburetor around those bulky scoop mount stands. Features:CNC ma..
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20-145 | PUMP LEVER GOLD - 50cc DOMINATOR ONLYclose
BrandHolleyColorZincEmission Code5MaterialSteelProduct TypeAccelerator Pump ArmSize50ccPart Number20-145..
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20-146 | PUMP LEVER BLACK - 50cc DOMINATOR ONLYclose
BrandHolleyColorBlackEmission Code5MaterialSteelProduct TypeAccelerator Pump ArmSize50ccPart Number20-146..
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241-119 | VALVE COVER, TALL LS, POLISHED W/ DOMINAclose
Holley's Dominator valve covers are the newest addition to our ever expanding line of products specifically designed for LS engines. Based on our existing tall LS valve covers, the new Dominator valve covers eliminate the coil-on-cover look and instead feature bold graphics that can represent your loyalty to the Holley brand and intimidate the competition. As a tall LS valve cover we have added a..
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241-120 | VALVE COVER, TALL LS, BLACK W/ DOMINATORclose
Holley's Dominator valve covers are the newest addition to our ever expanding line of products specifically designed for LS engines. Based on our existing tall LS valve covers, the new Dominator valve covers eliminate the coil-on-cover look and instead feature bold graphics that can represent your loyalty to the Holley brand and intimidate the competition. As a tall LS valve cover we have added a..
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241-121 | VALVE COVER, TALL LS, GLOSS RED W/ DOMINclose
Holley's Dominator valve covers are the newest addition to our ever expanding line of products specifically designed for LS engines. Based on our existing tall LS valve covers, the new Dominator valve covers eliminate the coil-on-cover look and instead feature bold graphics that can represent your loyalty to the Holley brand and intimidate the competition. As a tall LS valve cover we have added a..
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2471S | DOMESTIC THERMOCAP 16 PSI-SLVRclose
Knowing your coolant temperature can help to prevent burn injuries. Thermo Cap, with its built-in calibrated thermometer, indicates the coolant temperature. This is useful information prior to cap removal. Never attempt to remove Thermo Cap when the coolant temperature is very hot. The escaping hot coolant and steam may burn you. Reclamation valve works great with your coolant recovery system. You..
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34-34 | NEW DOMINATOR ANNULAR BOOSTERclose
Venturi Booster Kit Annular-Style For Classic Dominator. Includes booster pins.BrandHolleyEmission Code5MaterialAluminumProduct TypeVenturi Booster KitPart Number34-34..
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34-49 | -8AN DUAL FEED W/STAINLESS HOSE - DOMINAclose
Dual fuel lines for Holley Gen 3 Dominator Carburetors w -8 O-ring HP Bowls. Fuel line with dual 8AN inlet, Red & Blue fittings with Stainless hose Features:The fuel are 11.5” long (standard fuel line is 11.250”)Increased fuel volume of each bowl extends length by .125” per bowl (.250” overall)Braided Stainless Steel LineRugged Billet ConstructionAN fittingsRed and Blue AnodizedFor Holley 4500HP D..
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37-1534 | DOMINATOR KIT GEN 2 AND 3 4500close
Holley has you covered with our new Renew Kit for the Gen III Aluminum Dominators. The new kit includes all of the gaskets and hardware that you have come to expect in our renew kits including a pair of .120 and .130 needle and seat assemblies. Plus, the kit also includes both 2 Circuit and 3-Circuit Metering Block and Fuel Bowl gaskets and throttle body gaskets to fit your 950 CFM to 1475 CFM mod..
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37-1547 | DOMINATOR KITclose
Features:Serves All Holley Perf. CarburetorsGenuine Holley Quality PartsExtra Parts For Perf. TuningStep-By-Step InstructionsDetailed Tuning GuidePackaging Also Parts TrayCompetitively PricedBrandHolleyEmission Code5Kit TypeFast KitModel4500Product TypeRebuild KitPart Number37-1547..
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534-214 | TPS KIT FOR GEN 3 DOMINATORclose
TPS Kit for Gen 3 DominatorBrandHolleyEmission Code5Model4500Product TypeThrottle Position SensorPart Number534-214..
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553-121 | 4-1/2 SPEEDOMETER, 0-160 MPH, GPS, BLACKclose
Holley is pleased to announce the continuing evolution of its very successful analog-style gauges with the release of new 3-3/8" and 4-1/2" speedometers and tachometers to complement our 2-1/16" gauge line. These are designed specifically for use with Holley EFI systems or as a standalone unit and available in both black and white face versions. These gauges are compatible with all Terminator, HP,..
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553-123 | 3-3/8 SPEEDOMETER, 0-160 MPH, GPS, BLACKclose
Holley is pleased to announce the continuing evolution of its very successful analog-style gauges with the release of new 3-3/8" and 4-1/2" speedometers and tachometers to complement our 2-1/16" gauge line. These are designed specifically for use with Holley EFI systems or as a standalone unit and available in both black and white face versions. These gauges are compatible with all Terminator, HP,..
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