Advanced Engine Design Power Valve

The Advanced Engine Design (AED) Power Valve line gives Holley-style carburetors a vacuum-operated power valve for fuel enrichment. It is also called a carburetor power valve or Holley power valve. It adds fuel under heavy load, such as hard acceleration, and helps prevent a lean condition. The line is offered in several vacuum ratings, so you can match the valve to your engine's manifold vacuum and your tuning goals.

Key Features:

• Vacuum-activated design that opens only when the engine needs extra fuel, then enriches the air/fuel mixture
• Helps support crisp throttle response and consistent drivability
• Replaces the power valve in a Holley-style metering block as part of a carburetor rebuild or tuning change
• Available in standard-flow and high-flow versions to suit different carburetor setups
• Straightforward installation in the metering block with basic hand tools

AED is a well-known name in performance carburetors and fuel delivery. These power valves suit street, performance, and racing carburetor builds. Choose the vacuum rating and flow style that matches your engine setup.