Air/Fuel Delivery Parts for Carbureted & Fuel Injected Engines

Cram the right air/fuel ratio into your engine and you create incredible horsepower. Summit Racing has everything you need to find that mix, starting with carburetors...

Cram the right air/fuel ratio into your engine and you create incredible horsepower. Summit Racing has everything you need to find that mix, starting with carburetors for street to strip, plus intake manifolds ranging from stock-height replacements to hood-busting tunnel rams. If you’e ready to advance to fuel injection, we’ve got you covered with injectors, manifolds, fuel rails, sensors, and complete performance EFI conversion kits. We’ve also got cold air intakes, fuel pumps, fuel filters, superchargers, turbochargers, nitrous kits, methanol injection kits, hood scoops, and air filters—there’s no excuse for starving...

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Results 1 - 25 of 2000 +

Summit Racing™ Dual Carburetor Return Springs SUM-G1320

Throttle Return Springs, Chrome, Dual, Pair

Part Number: SUM-G1320

4.67 out of 5 stars ( 51 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Summit Racing™ Throttle Return Spring Kits SUM-G1327

Throttle Return Spring, Chrome, Dual Spring, Bracket for Holley 2300/4150/4160, Kit

Part Number: SUM-G1327

4.15 out of 5 stars ( 88 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Holley Vacuum Secondary Spring Kits 20-13

Vacuum Secondary Springs, Road, Speed, Mighty Demon, Holley 4150/4160 Carburetors,7-piece, Set

Part Number: HLY-20-13

4.8 out of 5 stars ( 49 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Quick Fuel Throttle Return Spring Kits 49-1QFT

Throttle Return Spring Kit, fits all QFT and Holley® 4500/4500HP, Kit

Part Number: QFT-49-1QFT

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Holley Billet Throttle Return Spring Brackets 20-284

Throttle Return Spring Brackets, Billet Aluminum, Carburetor Base Mount, Black Finish, Dual Spring, for Model 4150, 4160, Edelbrock Style, Each

Part Number: HLY-20-284

4.92 out of 5 stars ( 13 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Dorman Throttle Return Springs 59207

Throttle Return Springs, Black Oxide, Clear Anodized, Universal, Set of 4

Part Number: RNB-59207

4.94 out of 5 stars ( 17 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Summit Racing™ Carburetor Return Spring Brackets SUM-G1339

Return Bracket, Steel, Chrome, Universal, Each

Part Number: SUM-G1339

4.71 out of 5 stars ( 28 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Edelbrock Performer Step-Up Spring Kits 1464

Edelbrock Performer Step-Up Spring Kits 1464

Carburetor Step-Up Springs, Performer, Thunder Series AVS, Assortment, Set of 10

Part Number: EDL-1464

4.67 out of 5 stars ( 48 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Allstar Performance Universal Dual Throttle Return Spring Kits ALL54166

Throttle Return Spring, Chrome, Dual Spring, Bracket, Universal, Kit

Part Number: AAF-ALL54166

5.0 out of 5 stars ( 15 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Moroso Throttle Return Spring Kits 64923

Throttle Return Spring, Chrome, Dual Spring, Bracket for Holley 4500, Demon King Demon, Kit

Part Number: MOR-64923

4.08 out of 5 stars ( 12 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Allstar Performance Throttle Return Spring Brackets ALL54202

Throttle Return Spring Bracket, Carburetor Base Mounting Style, Billet Aluminum, Black, Each

Part Number: AAF-ALL54202

4.56 out of 5 stars ( 9 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Holley Billet Throttle Return Spring Brackets 20-282

Throttle Return Spring Brackets, Billet Aluminum, Clear Anodized, Dual Spring, Carburetor Base Mount, for Models 4150, 4160 Series, Each

Part Number: HLY-20-282

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Allstar Performance Carb Mount Return Spring Kits ALL54168

Throttle Return Spring, Chrome, Dual Spring, Bracket, Holley, 2300, 2305, 4150, 4160, Kit

Part Number: AAF-ALL54168

4.0 out of 5 stars ( 14 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Willy's Carburetor & Dyno Shop Throttle and Return Spring Kits WCD250

Throttle Return Spring and Bracket Kits, Throttle and Return Spring Kits, Carb Base Mounting, Springs, Steel Bracket, Black Powdercoated, Holley, Kit

Part Number: WCD-WCD250

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Holley Billet Throttle Return Spring Brackets 20-285

Throttle Return Spring Bracket, Billet Aluminum, Carburetor Base Mount, Black Finish, Dual Spring, for Model 4500 Series, Each

Part Number: HLY-20-285

3.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Quick Fuel Throttle Return Spring Kits 49-3QFT

Throttle Return Spring Kit, Holley® 4150, Kit

Part Number: QFT-49-3QFT

4.17 out of 5 stars ( 12 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Turbosmart Wastegate Springs TS-0505-2005

Wastegate Spring, 10 lbs. Range, Brown/Blue, Outer, Turbosmart, Each

Part Number: TBS-TS-0505-2005

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Moroso Throttle Return Spring Kits 64927

Throttle Return Spring, Chrome, Dual Spring, Bracket for Holley 2300/4150/4160, Kit

Part Number: MOR-64927

4.13 out of 5 stars ( 15 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Lokar Stainless Steel Throttle Return Springs SRK-4002

Throttle Return Springs, Dual, Stainless, Natural, Pair

Part Number: LOK-SRK-4002

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Quick Fuel Carburetor Vacuum Secondary Spring Kits 38-1000QFT

Carburetor Vacuum Secondary Springs, Steel, Demon, Holley, Quick Fuel, Diaphragm, Housing, Kit

Part Number: QFT-38-1000QFT

4.45 out of 5 stars ( 11 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Turbosmart Blow-Off Valve Springs TS-0204-2104

Blow-Off Valve Springs, 4-10 in. HG Operating Range, Stainless Steel, Pink Inner, Purple Outer, Kit

Part Number: TBS-TS-0204-2104

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Allstar Performance Universal Return Spring Brackets ALL54167

Bracket, Throttle Return Spring, Chrome, Universal, Each

Part Number: AAF-ALL54167

4.83 out of 5 stars ( 23 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Allstar Performance Throttle Return Spring Brackets ALL54203

Throttle Return Spring Bracket, Billet Aluminum, Black, Intake Manifold Mounting Style, Holley 4500, Each

Part Number: AAF-ALL54203

3.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Turbosmart Wastegate Springs TS-0505-2002

2011 WG38/40/45 5PSI Inner Spring Brown/Gray

Part Number: TBS-TS-0505-2002

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

Holley Chrome Throttle Return Springs 20-89

Springs, Throttle Return, Dual, Stainless Steel, Natural Finish, Pair

Part Number: HLY-20-89

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 11/3/2025

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Estimated Ship Date: Monday 11/3/2025

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