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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
$57.25
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
Looking for remote mounting brackets for modern 3-wire Bosch sensors used in GM LS engines? Aeromotive VaporWorx MAP sensor mounting bracket/blocks can be your solution. Compact and rugged, these kits come with everything needed to remote mount your sensor, including the electrical plug and components. They are ideal for mounting the Bosch-style 3-wire MAP sensor and for dynamometer operators looking for a simple to use and adapt system. Features and contents: * 6061 Type III hard coat anodized aluminum * 3-pin plug, terminals, and seals * Brass barb fitting for 1/8 in. hose x 1/8 in. NPT thread * Sufficient clearance to use larger hoses or AN fittings for vacuum line * MAP sensor hold-down screw * Stainless steel mounting screws * Four feet of vacuum hose
( 1 )
$64.70
$58.23
On Sale
JET quadrajet bushing service kits will restore your throttle valve assembly to better than new tolerances. Using the supplied bronze bushings, they eliminate common vacuum leak problems, inconsistent idle speeds, and binding or sticking throttle. The kits contain 16 bushings, 1 drill bit reamer, 4 retaining screws and an instruction sheet.
( 2 )
$99.71
$89.74
On Sale
Holley EFI fuel pulse dampers act in tandem with the fuel pressure regulator to further control the fuel pressure in an EFI system. They act to smooth out the pressure pulsations caused by the injectors opening and closing as well as the fuel pump operating. These pulsations happen so quickly that in many cases they can't be identified with an analog gauge but can cause issues with fuel delivery to the engine. Options include: * Direct-mount or inline mount * Multiple inlet/outlet dimensions * Standard or extended fuel pressure range * Male or female threads Features: * Engineered to stabilize pressure pulsations caused by the injectors opening; ideal for applications with large fuel injectors and high-volume fuel pumps * Compatible with any fuel; full anodized billet aluminum construction with stainless steel springs and fluorosilicone diaphragm * Fittings included for damper/regulators and direct-mount dampers * 1/8 in. NPT port on body of damper/regulators and inline dampers for easy installation of mechanical pressure gauge or pressure transducer * Vacuum fitting and one foot of hose included with all dampers for vacuum referencing
( 6 )
$106.95
$96.25
On Sale
Summit Bucks
Boost Products USA silicone couplers are reinforced with textile layers to be extreme pressure resistant, and also to vacuum in your Air Charge System. The hose tubing couplers are suitable for your intercooler system, intake system, water lines or similar, as they can withstand up to 5 Bar and temperatures up to 220 degrees C (not to be used as fuel or oil line). Boost Products silicone hoses have achieved, and many times even exceeded the quality of silicone hoses, compared to ones made by other well-known manufacturers in quality tests. The silicone is durable and flexible, stable, and color-proof for many years. As a matter of fact, lots of well-known companies in the tuning and motorsport areas have come to rely on these quality hose silicone couplers by Boost Products.
( 3 )
$59.06
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$78.24
$53.15
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$70.42
On Sale
APR throttle body inlet system is a comprehensive upgrade to the factory charge pipe system from the intercooler outlet to the throttle body. APR replaces all the components and provide a new, larger, free flowing system that flows roughly 34 percent more than stock. This was achieved by increasing the cross-sectional area of the system and by reducing the tight radius bend directly in front of the throttle body. This system does away with two potential boost leak points thanks to their single cast design. They have upgraded the intercooler outlet hose to a multiply wire-reinforced silicone design with T-bolt clamps that resist boost leak over the stock counterpart. APR's new billet throttle body to manifold adapter provides a convenient boost and vacuum reference point which can be used to for a gauge or anything else that suits your build. Lastly the system comes complete with new throttle body and intake manifold gaskets, which are common leak points many never know to address.
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$168.55
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$222.95
$74.95
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$99.95
On Sale
Holley electric choke conversion kits can be used to convert Holley carburetors originally equipped with either a hot air or hand-operated choke into a fully automatic operation.
( 9 )
$99.95
$89.95
On Sale
If your engine is running lean, misfiring, hesitating, or stalling, perhaps a Crown Automotive mechanical fuel pump will remedy those ills. Fuel leaks are a common problem, usually due to cracks or holes in the rubber diaphragm, or loose inlet or outlet fittings in your pumps. Crown can be relied on for quality replacement parts for the vehicles specified in the applications.
( 12 )
$96.99
$87.29
On Sale
JET adjustable TPI fuel pressure regulators enable you to obtain maximum efficiency and horsepower gains in a tuned port injection system. Unlike other designs, these JET regulators incorporate a steel insert on the adjuster to avoid stripping. Convert your factory regulator to an adjustable-style TPI fuel pressure regulator for the performance you demand!
( 3 )
$119.96
$107.96
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