Carburetors - Down-leg Booster Type

Quick Fuel Black Diamond Marine Series 750 CFM 4-Barrel Carburetor M-750

Carburetor, Q-Series Marine, 750 cfm, Mechanical Secondary, Electric Choke, Satin Black, Dual Inlet, Each

Part Number: QFT-M-750

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley Track Warrior 650 CFM 4-Barrel Carburetor 0-67199BK

Carburetors, Track Warrior, 650 cfm, 4-barrel, Square Bore, Mechanical Secondary, Dual Inlet, Shiny Body, Black Base and Metering Blocks, Each

Part Number: HLY-0-67199BK

4.56 out of 5 stars ( 9 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley Aluminum Ultra XP 850 CFM 4-Barrel Carburetor 0-80804BKX

Carburetors, Ultra XP, 850 cfm, 4-barrel, Square Bore and Dominator Mounting, Mechanical Secondaries, Dual Inlet, Shiny and Black Finish, Each

Part Number: HLY-0-80804BKX

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Quick Fuel Brawler Diecast Series 770 CFM 4-Barrel Carburetor BR-67258

Carburetor, Brawler Diecast Series, 770 cfm, Vacuum Secondary, Electric Choke, 4-Barrel, Square Bore

Part Number: QFT-BR-67258

3.92 out of 5 stars ( 13 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Quick Fuel Brawler Race Series 650 CFM 4-Barrel Carburetor BR-67301

Carburetor, Brawler Black Race Series, 650 cfm, Mechanical Secondary, 4-Barrel, Square Bore

Part Number: QFT-BR-67301

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Quick Fuel Q-Series 4-Barrel 850 CFM 4-Barrel Carburetor Q-850

Carburetor, Gasoline, 4150, 850 cfm, 4-Barrel, Down-Leg, Billet Metering Blocks, Dual Inlet, Each

Part Number: QFT-Q-850

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Quick Fuel Brawler Race Series 1,050 CFM 4-Barrel Carburetor BR-67209

Carburetor, Brawler Race Series, 1050 cfm, Mechanical Secondary, 4-Barrel, Square Bore

Part Number: QFT-BR-67209

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Quick Fuel Brawler Street Series 600 CFM 4-Barrel Carburetor BR-67316

Carburetor, Brawler Street Series, 600 cfm, Mechanical Secondary, Electric Choke, 4-Barrel, Square Bore, Black, Red Anodized Metering Blocks, Each

Part Number: QFT-BR-67316

4.33 out of 5 stars ( 9 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley Marine Avenger 570 CFM 4-Barrel Carburetor 0-82570

Carburetors, Marine Avenger, 570 cfm, 4-barrel, Square Bore, Electric Choke, Vacuum Secondaries, Dual Inlet, Hard Core Gray, Down-leg Booster, Each

Part Number: HLY-0-82570

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley Marine Avenger 670 CFM 4-Barrel Carburetor 0-82670

Carburetors, Marine Avenger, 670 cfm, 4-barrel, Square Bore, Electric Choke, Vacuum Secondaries, Dual Inlet, Hard Core Gray, Down-leg Booster, Each

Part Number: HLY-0-82670

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Quick Fuel Brawler Diecast Series 600 CFM 4-Barrel Carburetor BR-67254

Carburetor, Brawler Diecast Series, 600 cfm, Mechanical Secondary, Electric Choke, 4-Barrel, Square Bore, Each

Part Number: QFT-BR-67254

4.33 out of 5 stars ( 15 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley Aluminum Ultra XP 950 CFM 4-Barrel Carburetor 0-80805HBX

Carburetors, Ultra XP, 950 cfm, 4-barrel, Square Bore and Dominator Mounting, Mechanical Secondaries, Dual Inlet, Gray and Black Finish, Each

Part Number: HLY-0-80805HBX

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Quick Fuel Q-Series 4-Barrel 650 CFM 4-Barrel Carburetor Q-650-B2

Carburetor, Gasoline, 4150, 650 cfm, 4-Barrel, Down-Leg, For Dual Carbureted Blower Engines, Each

Part Number: QFT-Q-650-B2

Not Yet Reviewed

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Quick Fuel Brawler Diecast Series 600 CFM 4-Barrel Carburetor BR-67271

Carburetor, Brawler Die-Cast Series, 600 cfm, Vacuum Secondary, Manual Choke, 4-Barrel, Square Bore, Each

Part Number: QFT-BR-67271

4.38 out of 5 stars ( 13 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley Aluminum Ultra XP 750 CFM 4-Barrel Carburetor 0-80803BKX

Carburetors, Ultra XP, 750 cfm, 4-barrel, Square Bore and Dominator Mounting, Mechanical Secondaries, Dual Inlet, Shiny and Black Finish, Each

Part Number: HLY-0-80803BKX

4.56 out of 5 stars ( 9 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley Ultra Double Pumper 850 CFM 4-Barrel Carburetor 0-76850BL

Carburetors, Ultra Double Pumper, 850 cfm, 4-barrel, Square Bore, Electric Choke, Mechanical Secondaries, Dual Inlet, Blue and Polished Finish, Each

Part Number: HLY-0-76850BL

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley 4150 Classic HP 830 CFM 4-Barrel Carburetor 0-80509-2

Carburetors, Model 4150, Classic HP, 830 cfm, 4-barrel, Square Bore, Mechanical Secondaries, Dual Inlet, Gold Finish, Down-leg Booster, Each

Part Number: HLY-0-80509-2

Not Yet Reviewed

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Quick Fuel Street-Q 650 CFM 4-Barrel Carburetor SQ-650

Carburetor, Street-Q, 650 cfm, 4-barrel, Square Bore, Mechanical Secondary, Polished, Each

Part Number: QFT-SQ-650

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley Aluminum Ultra XP 950 CFM 4-Barrel Carburetor 0-80845HBX

Carburetors, Ultra XP, 950 cfm, E85 Fuel, 4-barrel, Square Bore and Dominator Mounting, Mechanical Secondary, Dual Inlet, Gray Finish, Each

Part Number: HLY-0-80845HBX

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Proform Race Series Mechanical Secondary 1,050 CFM 4-Barrel Carburetor 67209

Proform Race Series Mechanical Secondary 1,050 CFM 4-Barrel Carburetor 67209

Carburetor, Race Series, 1,050 cfm, 4-Barrel, Dual Inlet, Polished, Each

Part Number: PRO-67209

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley Aluminum Ultra XP 2-Barrel 500 CFM 2-Barrel Carburetor 0-4412BKX

Carburetors, Aluminum Ultra XP, 500 cfm, 2 Barrel, Tumble Polished, Single Inlet, Down-Leg Booster, Billet Base and Metering Block, Each

Part Number: HLY-0-4412BKX

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley Marine Avenger 500 CFM 2-Barrel Carburetor 0-82500

Carburetors, Marine Avenger, 500 cfm, 2-barrel, Electric Choke, Single Inlet, Hard Core Gray, Down-leg Booster, Universal Linkage, Each

Part Number: HLY-0-82500

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Quick Fuel SS-Series 750 CFM 4-Barrel Carburetor SS-750

Carburetor, Gasoline, Super Street, 750 cfm, 4-Barrel, Down-Leg, Electric Choke, Mechanical Secondary, Dual Inlet

Part Number: QFT-SS-750

4.26 out of 5 stars ( 19 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley 4150 XP Supercharger 950 CFM 4-Barrel Carburetor 0-80577SA

Carburetors, Model 4150, Supercharger XP, 950 cfm, 4-barrel, Square Bore, Mechanical Secondaries, Dual Inlet, Black and Polished Finish, Each

Part Number: HLY-0-80577SA

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air

Holley Aluminum Ultra XP 650 CFM 4-Barrel Carburetor 0-80812BKX

Carburetors, Ultra XP, 650 cfm, 4-barrel, Square Bore, Mechanical Secondaries, Dual Inlet, Shiny and Black Finish, Down-leg Booster, Each

Part Number: HLY-0-80812BKX

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/26/2026 if shipped by air

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Estimated Ship Date: Monday 10/26/2026 if shipped by air