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    • AED5585.jpg

    AED Quick-Change Vacuum Secondary Tuning Kit, Color-Coded Springs - Holley Carburetors | 5585

    Vendor: Advanced Engine Design
    Part Number: 5585
    $35.18

    Currently out of stock.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
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    Product DetailsFAQReviewsRelated Products

    Tuning a vacuum-secondary carburetor typically means repeatedly removing the diaphragm housing to swap springs until the secondaries open at the right point. This kit speeds that process up with a quick-change housing top that swaps in seconds. The steel housing accepts AED's color-coded spring assortment, so a tuner can identify and change spring rates at the track or in the shop without fully disassembling the vacuum secondary housing each time.

    Specifications:

    • Component: Vacuum secondary housing top + spring assortment
    • Housing material: Steel
    • Springs: Color-coded for quick identification
    • Fitment: Holley carburetors with vacuum secondary
    • Part Number: 5585

    FAQ

    What problem does this kit solve?

    It replaces the standard vacuum secondary housing top with a quick-change design, so spring rates can be swapped without fully disassembling the housing each time.

    How are the springs identified?

    The included springs are color-coded, making it easy to identify and select the correct spring rate during tuning.

    What carburetors is this kit for?

    This kit is designed for Holley carburetors equipped with a vacuum secondary.

    Does the kit include a full spring assortment?

    Yes, the kit includes a quick-change housing along with a set of color-coded springs for tuning.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

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    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy
    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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