Advanced Engine Design Vacuum Secondary Tuning Kit — Holley Carburetor Spring Set (7-Piece)

SKU: BJLH_5580
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Master Your Holley's Power Band with the AED Vacuum Secondary ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
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Sizing & Fit

Master Your Holley's Power Band with the AED Vacuum Secondary Tuning Kit

Unlock the full power and efficiency of your Holley carburetor with the Advanced Engine Design Vacuum Secondary Tuning Kit. This essential 7-piece spring set allows you to precisely control when your carburetor's secondary barrels open, ensuring optimal air-fuel mixture and maximum horsepower across your engine's RPM range. Improper secondary engagement can lead to a sluggish top-end or an overly rich condition, but with this kit, you gain the control to dial in your carburetor for peak performance.

Precision-Engineered Springs for Optimal Engagement

Each spring in this kit is crafted from durable steel and color-coded for easy identification, representing different tension rates. By swapping out your vacuum secondary spring, you can fine-tune the delay and rate at which the secondary throttle plates open. A lighter spring will open the secondaries sooner, ideal for lighter vehicles or engines that build vacuum quickly, while a heavier spring delays engagement for heavier vehicles or engines that require more time to reach their power band. This adjustability is critical for maximizing both drivability and wide-open throttle performance.

Kit Contents & Tuning Benefits:

  • 7 Color-Coded Springs: A comprehensive range of tensions for precise secondary tuning.
  • Optimized Power Delivery: Ensures secondaries open at the ideal RPM for maximum horsepower.
  • Improved Fuel Economy: Prevents premature secondary engagement for better cruising efficiency.
  • Enhanced Drivability: Eliminates flat spots and provides a smoother transition into the power band.
  • Durable Steel Construction: Built to last and maintain consistent tension.

The Key to a Perfectly Balanced Carburetor

The vacuum secondary system is a crucial component for balancing street manners with high-performance demands. With the Advanced Engine Design Vacuum Secondary Tuning Kit, you have the tools to achieve that perfect balance, ensuring your Holley carburetor delivers power smoothly and efficiently. This kit is a must-have for anyone looking to extract the absolute best performance from their Holley setup. Find your ideal secondary spring at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

Master Your Holley's Power Band with the AED Vacuum Secondary Tuning Kit

Unlock the full power and efficiency of your Holley carburetor with the Advanced Engine Design Vacuum Secondary Tuning Kit. This essential 7-piece spring set allows you to precisely control when your carburetor's secondary barrels open, ensuring optimal air-fuel mixture and maximum horsepower across your engine's RPM range. Improper secondary engagement can lead to a sluggish top-end or an overly rich condition, but with this kit, you gain the control to dial in your carburetor for peak performance.

Precision-Engineered Springs for Optimal Engagement

Each spring in this kit is crafted from durable steel and color-coded for easy identification, representing different tension rates. By swapping out your vacuum secondary spring, you can fine-tune the delay and rate at which the secondary throttle plates open. A lighter spring will open the secondaries sooner, ideal for lighter vehicles or engines that build vacuum quickly, while a heavier spring delays engagement for heavier vehicles or engines that require more time to reach their power band. This adjustability is critical for maximizing both drivability and wide-open throttle performance.

Kit Contents & Tuning Benefits:

  • 7 Color-Coded Springs: A comprehensive range of tensions for precise secondary tuning.
  • Optimized Power Delivery: Ensures secondaries open at the ideal RPM for maximum horsepower.
  • Improved Fuel Economy: Prevents premature secondary engagement for better cruising efficiency.
  • Enhanced Drivability: Eliminates flat spots and provides a smoother transition into the power band.
  • Durable Steel Construction: Built to last and maintain consistent tension.

The Key to a Perfectly Balanced Carburetor

The vacuum secondary system is a crucial component for balancing street manners with high-performance demands. With the Advanced Engine Design Vacuum Secondary Tuning Kit, you have the tools to achieve that perfect balance, ensuring your Holley carburetor delivers power smoothly and efficiently. This kit is a must-have for anyone looking to extract the absolute best performance from their Holley setup. Find your ideal secondary spring at GGCRACING.

Product Details

Product Description

Master Your Holley's Power Band with the AED Vacuum Secondary Tuning Kit

Unlock the full power and efficiency of your Holley carburetor with the Advanced Engine Design Vacuum Secondary Tuning Kit. This essential 7-piece spring set allows you to precisely control when your carburetor's secondary barrels open, ensuring optimal air-fuel mixture and maximum horsepower across your engine's RPM range. Improper secondary engagement can lead to a sluggish top-end or an overly rich condition, but with this kit, you gain the control to dial in your carburetor for peak performance.

Precision-Engineered Springs for Optimal Engagement

Each spring in this kit is crafted from durable steel and color-coded for easy identification, representing different tension rates. By swapping out your vacuum secondary spring, you can fine-tune the delay and rate at which the secondary throttle plates open. A lighter spring will open the secondaries sooner, ideal for lighter vehicles or engines that build vacuum quickly, while a heavier spring delays engagement for heavier vehicles or engines that require more time to reach their power band. This adjustability is critical for maximizing both drivability and wide-open throttle performance.

Kit Contents & Tuning Benefits:

  • 7 Color-Coded Springs: A comprehensive range of tensions for precise secondary tuning.
  • Optimized Power Delivery: Ensures secondaries open at the ideal RPM for maximum horsepower.
  • Improved Fuel Economy: Prevents premature secondary engagement for better cruising efficiency.
  • Enhanced Drivability: Eliminates flat spots and provides a smoother transition into the power band.
  • Durable Steel Construction: Built to last and maintain consistent tension.

The Key to a Perfectly Balanced Carburetor

The vacuum secondary system is a crucial component for balancing street manners with high-performance demands. With the Advanced Engine Design Vacuum Secondary Tuning Kit, you have the tools to achieve that perfect balance, ensuring your Holley carburetor delivers power smoothly and efficiently. This kit is a must-have for anyone looking to extract the absolute best performance from their Holley setup. Find your ideal secondary spring at GGCRACING.

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