Air & Fuel Delivery
Availability
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...
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 that horsepower-hungry beast now!
On Sale
These Holley vacuum secondary spring kits are designed to fine-tune your carburetor. They have an effect on initial operating and full upper rpm.
( 49 )
$23.75
$21.38
Titan vacuum cap kits can provide a sure way to seal vacuum line connections on your carburetors, manifolds, etc., when the vacuum lines have been removed. These vacuum caps are constructed from durable, heat-resistant Buna-N rubber. They come in a range of sizes in a convenient, resealable plastic case to keep the vacuum caps organized. Kits contain: * (20) 3/16 in. * (20) 5/32 in. * (20) 7/32 in. * (10) 1/4 in. * (5) 5/16 in. * (5) 3/8 in.
( 59 )
$13.99
—
$19.99
On Sale
Holley vacuum secondary diaphragms will replace your existing worn-out diaphragms. They are made from a high performance rubber material and will fit most Holley carburetors with vacuum secondaries.
( 49 )
$63.59
$17.09
—
$57.25
Edelbrock vacuum caps provide a way to seal vacuum line connections on your intake manifold, carburetor, or wherever you need. The rubber sets contain a variety of sizes for versatile uses.
( 9 )
$14.95
On Sale
Holley offers vacuum secondary carburetor accessories that can be used as replacements or for use in upgrading your present carburetor. From diaphragms to spring kits, covers to quick-change kits and more, Holley has the part accessories you need to keep your carburetor at peak performance.
( 35 )
$38.17
$34.35
—
$99.95
On Sale
These Summit Racing™ vacuum secondary upgrade Pro Packs can help you modify your carburetor's initial operating and full end rpm. They include an assortment of vacuum secondary springs, so you can choose which is best for your engine combination. They also include a quick-change housing and cover that allow you to make fast changes in no time at all. Optimize your engine rpm and tune-in your carburetor with one of these Summit Racing™ vacuum secondary upgrade Pro Packs.
( 20 )
$61.92
$55.73
On Sale
Fine-tune your opening rate for winning performance with Quick Fuel carburetor vacuum secondary spring kits. The assortment includes seven springs from light (white) to heavy (black) to efficiently regulate your carburetor's secondaries. One spring doesn't fit all applications. Tune your carburetor for best performance with Quick Fuel carburetor vacuum secondary spring kits.
( 18 )
$37.44
$19.61
—
$33.70
If you've ever fine-tuned the vacuum secondary spring on your Holley carburetor, then you know what a pain it can be to keep disassembling the housing. These AED vacuum secondary quick-change kits with springs allow you to easily swap out vacuum advance springs for efficient tuning between rounds.
( 26 )
$30.79
Summit Racing™ vacuum secondary diaphragms are made from high quality rubber and are perfect for replacing old, worn -out diaphragms. They're available from most Holley carburetors with vacuum secondaries.
( 7 )
$8.99
Dorman vacuum caps are available in a variety of sizes, colors, and materials. These caps are designed to block off unused vacuum ports and lines, helping to avoid leaks and inadequate engine performance.
( 23 )
$2.99
—
$8.99
These convenient cap kits from Summit Racing™ provide a quick, sure way to seal vacuum line connections at carburetors, manifolds, etc., when vacuum lines have been removed. They consist of color-coded soft plastic caps.
( 11 )
$10.99
Holley vacuum line cap kits feature a selection of different sized vacuum tube caps. These caps are an indispensable addition to any professional tool kit.
( 13 )
$19.58
Pico vacuum caps are available in a variety of sizes, colors, and materials. These caps are designed to block off unused vacuum ports and lines, helping to avoid leaks and inadequate engine performance. Order the kit that best fits your application.
( 2 )
$1.99
—
$18.99
Moroso convenient vacuum line cap kits provide a quick, sure way to seal vacuum line connections at carburetors, manifolds, etc., when the lines have been removed. They consist of color-coded soft plastic caps.
( 1 )
$12.99
—
$17.99
Cap off your vacuum ports and connections with Milodon vacuum line caps. They are a simple way to temporarily or permanently cap off connections and ports with the lines removed. Each kit contains several cap sizes.
( 5 )
$9.95
Holley vacuum passage gaskets are designed to seal up those important vacuum areas in your carburetor. They are made from cork material and can be installed on your Holley carburetor with no modifications.
( 4 )
$32.66
Performance Tool vacuum cap kits provide a quick and sure way to seal vacuum connections. Use them on carburetors, manifolds, or where various vacuum tube caps are needed. Cap lines and hoses while testing emission control systems, diaphragm, and much more. Performance Tools vacuum caps are constructed from durable and heat-resistant Nitrile rubber.
Not Yet Reviewed
$13.99
On Sale
Mr. Gasket vacuum line cap kits are made of Buna-N rubber for durability and longer life than neoprene/vinyl, especially when exposed to high temperatures. They are used to block off open engine vacuum fittings.
( 1 )
$13.81
$12.43
Vacuum secondary carburetors are designed for universal installation on varying engine sizes and power levels. In turn, great improvements can be made by tailoring the secondary opening rate to your specific engine combo. These AED vacuum secondary spring tuning kits are designed to upgrade and fine-tune your vacuum secondary carburetor, resulting in overall better engine performance.
( 2 )
$17.99
Quick Fuel vacuum passage seals create a leak-free connection between the vacuum secondary housing and carburetor main body. These small, but important gaskets are made from cork material. Rebuild and service your carburetors with the help of Quick Fuel.
( 4 )
$2.74
URO Parts vacuum check valves comply with all applicable emissions requirements. Precision-engineered to withstand the stress today's deteriorating traffic conditions place on engines, these check valves are manufactured from high-quality materials to survive high underhood temperatures, constant vibration, and repeated vacuum cycles. URO Parts vacuum check valves fit, perform, and last like OE parts—without the high prices. Order the vacuum check valve that's suited to fit your application.
Not Yet Reviewed
$5.99
Quick Fuel offers these replacement carburetor vacuum secondary diaphragms to get your carburetor working like it should. The diaphragm on a vacuum-operated secondary carburetor needs to be in good shape and free of leaks, or else it may not open at the right time, or at all, causing a serious loss in power. These Quick Fuel carburetor vacuum secondary diaphragms are perfect replacements for your old, worn-out diaphragms that could be robbing you of potential power and performance.
( 2 )
$15.36
—
$53.29
Seal vacuum line connections with these cap kits from Trans-Dapt. Each set includes several sizes and colors of plastic caps.
( 2 )
$8.99
Dorman manufactures a comprehensive selection of vacuum and emissions fittings for almost any automotive vacuum application. They also offer vacuum tubing, sold separately. Dorman vacuum tubing connectors are available in a wide variety of shapes, including straight, T-shaped, Y-shaped, F-shaped, and L-shaped. Constructed from durable hard plastic or soft, heat-resistant PVC vinyl for a long service life, depending on the application, they are offered in either black or white.
( 9 )
$3.99
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
