Advanced Engine Design Carburetor

Advanced Engine Design Carburetors: Competition-Proven Fuel Delivery

When it comes to performance carburetion, Advanced Engine Design (AED) has built a reputation that stretches across virtually every corner of motorsports. Based in North Chesterfield, VA, AED researches, designs, and manufactures a complete line of performance and competition carburetors and carburetor components engineered to deliver consistent, reliable fuel metering under the most demanding conditions.

What separates AED from the competition is their approach to development. The company employs a computerized wet-flow bench designed exclusively for carburetor testing, allowing engineers to measure airflow, fuel flow, manifold vacuum, and air/fuel ratio across the entire RPM range. This means every carburetor and component that leaves the shop has been validated to properly match and balance fuel delivery on all throttle bores — not just spec'd on paper.

Built for Every Form of Competition

AED's carburetor lineup is purpose-built to serve a wide range of performance disciplines. Whether the application is Pro Street, drag racing, oval track, marine, or even pulling tractors, AED carburetors are CNC-machined to exacting tolerances and engineered with competition-focused features throughout. The brand also supports alcohol and multi-carb supercharger applications, making it a go-to resource for builders who need more than a shelf-stock carb.

A standout in the AED lineup is their Competition Series — custom-built carburetors that are CNC machined and ported, wet flowed, blueprinted, and tested for each specific application. For enthusiasts who need a proven bolt-on solution for Holley-style carburetors, AED also offers the Pro-Series Rebuild Kits (such as the AED-41501 for 390–1000 CFM Holley 4150 applications) in both gasoline and methanol configurations.

A Complete Ecosystem of Carburetor Components

Beyond complete carburetors, AED supplies everything needed to maintain, rebuild, or upgrade a Holley 4150, 4160, or 4500-style carburetor. Their catalog covers:

• Rebuild Kits — Pro Series and Performance kits for gas and methanol, covering 390–1000 CFM Holley 4150 carburetors
• Reusable Composite Gaskets — Float bowl, metering block, and fuel bowl gasket sets engineered for long service life
• Adjustable Needle & Seat Assemblies — Available in Viton for gasoline and stainless for alcohol applications
• Accelerator Pump Components — Diaphragms (30cc and 50cc), check valves, and cam kits for precise pump shot tuning
• Fuel Bowls & Floats — Center-hung aluminum and brass floats for Holley 4150/4160/2300 carburetors
• Power Valves — Single-stage four-door valves for both gas and alcohol, in a range of vacuum ratings

This depth of coverage means builders and tuners can source complete carburetor solutions — from a fresh assembly to individual service components — all from a single trusted manufacturer with decades of hands-on competition experience behind every part.