Air & Fuel

Wilson Manifolds' carburetor adapters are designed to improve overall airflow and distribution. Wilson Manifolds' carburetor adapters are made of high-quality aluminum and are hard-coat anodized to prevent corrosion.

Carburetor Adapter, Aluminum, Tapered, Light Weight, 2300 2-Barrel to 4150 4-Barrel, 1 in. Thick, Each

Adapter Style: Individual venturi ports

Height (in): 1.000 in.

Hardware Included: No

Gaskets Included: No

Adapter Material: Aluminum

Adapter Finish: Black anodized

Quantity: Sold individually.

Notes: Fits 4150 style intake manifolds.

Wilson Manifolds tapered carburetor spacers feature a computer-generated, variable-radius taper design that maximizes airflow through the carburetor and enhances air/fuel distribution for more horsepower. Part throttle performance and distribution are improved by redirecting the flow pattern created by the partially open throttle blades and gradually reducing the velocity of the air/fuel mixture entering the plenum. This allows for a smoother transition into each runner, as full throttle performance is improved by increased flow. These tapered spacers can increase flow through the carburetor or throttle body by as much as 110 cfm. Wilson Manifolds tapered carburetor spacers will increase torque, horsepower, and acceleration throughout the entire rpm range. Wilson Manifolds offers the most complete line of 4-hole tapered spacers in 390, 4150, 4500, Q-Jet, and 2-barrel adapters. This provides high performance consumers with the ability to tune their engines for the maximum performance on any application. Wilson Manifolds is the only manufacturer to offer a choice of tapered spacer heights, and produces the only fully CNC-machined billet tapered spacers on the market. Wilson Manifolds tapered carburetor spacers will benefit any vehicle that operates under part or full throttle conditions such as bracket racing using a throttle stop, drag racing, Circle Track, road racing, off-shore power boats, street/strip engines, and towing vehicles.

Carburetor Spacer Style: Tapered combo spacer

Thickness (in): 1.000 in.

Carburetor Spacer Material: Aluminum

Carburetor Spacer Finish: Black anodized

Gaskets Included: No

Mounting Hardware Included: No

Quantity: Sold individually.

Notes: 4500 carburetor spacer for Dart and Brodix cloverleaf plenum.

Wilson Manifolds high-flow throttle bodies were developed using the latest computer modeling software and test equipment available to produce designs that yield the maximum flow per square inch of cross-sectional area. These 4-barrel style throttle bodies are designed to work with Wilson Manifolds' line of billet spacers and incorporate a tapered and radiused throttle bore and precisely machined progressive linkage for smooth throttle operation. They also feature inward-opening throttle blades to eliminate directional influence caused by the blades. Wilson Manifolds' 4-barrel throttle bodies are shorter in height than other brands by up to 1.25 in. for easy packaging and reduced weight. All throttle bodies feature brass throttle blades to control vibration and reduce thermal expansion. The throttle blades are fastened to the throttle shaft using aircraft-quality hardware that is both Loctited and peened to ensure positive retention of the blades. The throttle shafts are machined to decrease their cross-sectional area, which increases the actual cross-section available for airflow. All throttle bodies are machined from billet 6061-T6 aluminum on precision CNC machining centers for consistent quality and light weight. High-flow throttle bodies are available in 4500 and 4150 four-barrel styles.

Throttle Body Style: Multi-port injection, MPI
Venturi Quantity: 1
Venturi Diameter -mm: 105.00mm
Airflow Rate -cfm: 1,520 cfm
TPS Sensor Included:No
IAC Motor Included: No
Gaskets Included: Yes
Hardware Included: No
Injectors Included: No
Throttle Body Material: Billet aluminum
Throttle Body Finish: Clear anodized
Quantity: Sold individually.

Notes: Features a V-band clamp on the inlet side of the throttle body. Please ensure that the larger than stock throttle blade has enough manifold clearance.

Wilson Manifolds V-band base throttle bodies are machined from billet 6061-T6 aluminum on precision CNC machining centers for consistent quality and lighter weight. They're developed using the latest computer modeling software and test equipment to create a design that yields maximum flow for maximum power. Wilson V-band throttle bodies feature brass throttle blades to control vibration and reduce thermal expansion. They are fastened to the throttle shaft using aircraft-quality hardware that has had Loctite applied and has been peened to ensure a positive retention of the blades. Wilson Manifolds V-band base throttle bodies offer more air with better flow and a secure fit.

Throttle Body Style: Multi-port injection, MPI
Venturi Quantity: 1
Venturi Diameter -mm: 123.00mm
TPS Sensor Included: No
IAC Motor Included: No
Gaskets Included: Yes
Hardware Included: No
Injectors Included: No
Throttle Body Material: Billet aluminum
Throttle Body Finish: Clear anodized
Notes: Features V-band mounting base.

For the price-conscious racer looking for a top-quality billet aluminum carburetor spacer, Wilson Manifolds offers you their SE Series open spacers. These open carburetor spacers are 100 percent CNC-machined from billet 6061 aluminum and feature dowel pin provisions for precision-locating the spacer to the manifold, if desired. SE Series open spacers increase plenum volume and move the throttle blades away from the roof of the runners, allowing the air/fuel mixture to turn more easily into the runners for improved distribution and mixture quality. With Wilson Manifolds SE Series open spacers, you'll experience added midrange and top-end horsepower at a price that won't break the bank.

Carburetor Spacer Style: Open

Thickness (in): 2.000 in.

Carburetor Spacer Material: Aluminum

Carburetor Spacer Finish: Natural

Gaskets Included: No

Mounting Hardware Included: No

Wilson Manifolds high-flow throttle bodies were developed using the latest computer modeling software and test equipment available to produce designs that yield the maximum flow per square inch of cross-sectional area. These 4-barrel style throttle bodies are designed to work with Wilson Manifolds' line of billet spacers and incorporate a tapered and radiused throttle bore and precisely machined progressive linkage for smooth throttle operation. They also feature inward-opening throttle blades to eliminate directional influence caused by the blades. Wilson Manifolds' 4-barrel throttle bodies are shorter in height than other brands by up to 1.25 in. for easy packaging and reduced weight. All throttle bodies feature brass throttle blades to control vibration and reduce thermal expansion. The throttle blades are fastened to the throttle shaft using aircraft-quality hardware that is both Loctited and peened to ensure positive retention of the blades. The throttle shafts are machined to decrease their cross-sectional area, which increases the actual cross-section available for airflow. All throttle bodies are machined from billet 6061-T6 aluminum on precision CNC machining centers for consistent quality and light weight. High-flow throttle bodies are available in 4500 and 4150 four-barrel styles.

Throttle Body Style: Multi-port injection, MPI
Venturi Quantity: 1
Venturi Diameter (mm): 90.00mm
Airflow Rate (cfm): 1,170 cfm
TPS Sensor Included: No
IAC Motor Included: No
Gaskets Included: Yes
Hardware Included: No
Injectors Included: No
Throttle Body Material: Billet aluminum
Throttle Body Finish: Clear anodized
Notes: Please ensure that the larger than stock throttle blade has enough manifold clearance.

Wilson Manifolds' lightweight, 100 degree elbows provide the most efficient method of adapting their high-flow, single-bore throttle bodies to 4150 or 4500 series intake manifolds. Wilson Manifolds' elbows incorporate a computer-optimized transition from the throttle body to the intake manifold plenum for maximum airflow and distribution. Wilson Manifolds' elbows are CNC-machined to match each throttle body size.

Air Inlet Material: Aluminum
Air Inlet Finish: Natural
Rubber Sleeve Adapters Included: No
Hose Clamps Included: No
Notes: Fits Forward 4150 flange. Accepts 60-90mm throttle body.

Wilson Manifolds' lightweight, 100 degree elbows provide the most efficient method of adapting their high-flow, single-bore throttle bodies to 4150 or 4500 series intake manifolds. Wilson Manifolds' elbows incorporate a computer-optimized transition from the throttle body to the intake manifold plenum for maximum airflow and distribution. Wilson Manifolds' elbows are CNC-machined to match each throttle body size.

Air Inlet Material: Aluminum
Air Inlet Finish: Natural
Rubber Sleeve Adapters Included: No
Hose Clamps Included: No
Notes: Fits Forward 4150 flange. Accepts 95-105mm throttle body.

Nitrous Pro-Flow purge kits are designed to be plumbed into the main feed line with no additional fittings required.

A purge system allows any vapor in the nitrous feed line to be expelled prior to the nitrous system activation.

This eliminates and lag cause by the time required for the liquid nitrous to reach the plate or nozzle.

Nitrous Pro-Flow purge kits are designed to be plumbed into the main feed line with no additional fittings required.

A purge system allows any vapor in the nitrous feed line to be expelled prior to the nitrous system activation.

This eliminates and lag cause by the time required for the liquid nitrous to reach the plate or nozzle.

The Nitrous Pro-Flow bottle with its patent pending valve and tube assembly flows 360 lb/hr more than the competitor's high flow valve and tube! Independent testing showed a 20hp increase by switching bottles alone. The unique Radiused inlet and large diameter pick-up tube design prevents separation in the flow of the nitrous which can cause a phase change and a resulting loss in flow. The valve assembly is a specially modified version of the industry standard. Nitrous Pro-Flow lightweight aluminum bottles are powder coated black and are available in 10lb and 15lb sizes.