FAST Intake Manifolds, Throttle Bodies & EFI

Shop FAST intake manifolds, throttle bodies, EFI retrofit components, fuel rails, sensors, and wiring at Black Ops Auto Works. Explore Fuel Air Spark Technology products for compatible LS, Gen III HEMI, and custom engine configurations. From updating an intake assembly to planning a multiport EFI installation, choose components that match the cylinder heads, throttle controls, fuel system, and engine-management requirements.

FAST LSX, LSXR, LSXRT, and LSXHR Intake Manifolds

This collection includes multiple FAST manifold families for supported LS applications, with cathedral-port, rectangular-port, and LS7-specific configurations represented. These manifolds differ in port geometry, packaging, and intended engine combination. An LS designation alone does not establish compatibility.

Identify the cylinder heads actually installed on the engine, especially on swapped or modified vehicles. Confirm the manifold’s port configuration, inlet size, overall height, fuel-rail requirements, and throttle-body mounting arrangement. Evaluate the selected design alongside the camshaft, operating range, and available hood clearance rather than choosing by inlet diameter alone.

FAST Big Mouth Throttle Bodies

Explore FAST throttle bodies in different bore sizes and configurations, including selected Big Mouth models and packages supplied with a throttle-position sensor or idle-air-control component. This collection also includes a drive-by-cable throttle-body application for supported Gen III Chrysler HEMI installations.

Confirm cable-operated versus electronic throttle requirements before ordering. A drive-by-cable throttle body is not a direct substitute for a factory drive-by-wire assembly simply because the engine family matches. Check the bolt pattern, inlet connection, linkage, sensor compatibility, and required control-system changes.

EZ-EFI Multiport Retrofit Components

The FAST EZ-EFI multiport retrofit approach is intended for compatible existing multiport fuel-injection configurations. It should not be confused with a complete throttle-body injection conversion or assumed to include a new intake manifold, injectors, and fuel supply system.

Review the exact kit version and supplied components. Confirm injector compatibility, ignition-signal requirements, fuel pressure, oxygen-sensor installation, and wiring before beginning the project. Features associated with a different EZ-EFI generation or another FAST controller should not be assumed to apply to the selected kit.

FAST Fuel Rails and Injector Harnesses

Compare billet fuel-rail kits, OE fuel-rail adaptation kits, and application-specific injector harnesses. Similar product titles can refer to different manifold or injector configurations, so use the exact FAST part number to identify the required combination.

Check injector height, sealing dimensions, rail mounting points, fuel connections, and harness connectors. A fuel-rail kit does not automatically include injectors, a pump, a regulator, or complete plumbing. Browse our fuel delivery components when planning the supporting parts for your installation.

Sensors, Seals, and Installation Accessories

This collection also includes MAP sensors, air-temperature sensors, signal-converter components, spark plug wires, oxygen-sensor mounting accessories, and replacement intake seals. These products support specific measurement, ignition, or sealing requirements rather than serving as interchangeable universal upgrades.

Match sensor range and calibration to the controller, not just the connector. Select intake-port seals, inner seals, and throttle-body O-rings for the exact manifold or throttle body. An upper-shell listing is a replacement component and should not be mistaken for a complete intake assembly.

Planning a Matched FAST Induction System

Professional installation and calibration support are recommended when changing fuel delivery, throttle operation, or engine-management components. Review the complete combination before purchase, including the installed cylinder heads, manifold, injectors, rails, throttle body, sensors, and controller.

After installation, follow the manufacturer’s checks for fuel leaks, vacuum leaks, throttle operation, sensor readings, and wiring security. A larger manifold inlet or throttle bore does not guarantee a power increase. Results depend on the engine combination and appropriate setup.

Before You Order FAST Parts

• Confirm the engine family, generation, and installed cylinder-head port configuration.
• Match the exact FAST manufacturer part numbers across the assembly.
• Verify manifold height, inlet size, bolt pattern, and throttle-body clearance.
• Confirm drive-by-cable or drive-by-wire operation and sensor requirements.
• Check injector dimensions, fuel-rail compatibility, and fuel-system needs.
• Distinguish complete kits from shells, seals, harnesses, and other service components.
• Review calibration, installation, and applicable emissions requirements.

Frequently Asked Questions

Will any FAST LS manifold fit my LS engine?

No. Cylinder-head port shape, engine configuration, and installation clearance must match. Confirm the actual heads and the exact manifold application, particularly when the engine has been swapped or modified.

Does a larger FAST throttle body always add horsepower?

No. The benefit depends on the engine’s airflow needs and the rest of the induction system. Fitment, throttle control, sensor compatibility, and calibration must be addressed before evaluating performance.

Can I replace an electronic throttle body with a cable-operated model?

Not as a simple direct replacement. The engine-management system, pedal or cable arrangement, idle control, and safety functions must support the conversion. Confirm the complete configuration with a qualified installer.

Does an EZ-EFI multiport retrofit kit include a complete fuel system?

Do not assume it does. Check the exact package contents and requirements for the existing manifold, injectors, fuel supply, ignition, and wiring. Different EFI kits contain different components.

Are FAST fuel rails and replacement seals interchangeable?

Only where the manufacturer specifies compatibility. Match the manifold family, injector arrangement, seal dimensions, and exact part number. Similar appearance is not sufficient to confirm fit.

Shop FAST at Black Ops Auto Works

Compare FAST induction, fuel-injection, and service components for your next engine project. Build a matched parts list around the installed hardware and intended operating conditions. Confirm fitment, kit contents, and control-system requirements before ordering.