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Master Your Secondary Opening Rate with AED Tuning Kits

Vacuum secondary carburetors rely on the delicate balance of air pressure to determine when the secondary throttle blades open. The Advanced Engine Design (AED) Quick Change Vacuum Secondary Tuning Kit allows you to adjust this opening rate without removing the carburetor from the engine. This is the ultimate convenience for track-side tuning, enabling you to find the perfect balance between fuel economy and wide-open throttle performance.

Precision Tuning Features

• Quick Change Housing: Allows for rapid spring swaps in minutes.
• Color-Coded Springs: Includes a variety of tensions to match your engine's vacuum signal.
• Steel Construction: Built for durability and consistent spring rates under heat.
• Universal Holley Fitment: Compatible with most Holley vacuum secondary carburetors.

By selecting the correct spring, you can delay or accelerate the secondary opening to match your vehicle's weight, gearing, and engine torque curve. A spring that is too light will cause the secondaries to open too early, resulting in a bog or hesitation; a spring that is too heavy will cause the engine to feel sluggish at the top end. This kit empowers you to fine-tune your carburetor for maximum power delivery, ensuring your engine performs at its peak in every gear. Enhance your tuning capabilities with this essential kit from GGCRACING.