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    • AED6465.jpg

    AED Complete Baseplate Assembly, 4-Corner Idle, 650-800 CFM - Holley 4150 | 6465

    Vendor: Advanced Engine Design
    Part Number: 6465
    $128.27

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    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
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    This complete baseplate assembly replaces the throttle baseplate on a Holley 4150-style carburetor sized in the 650-800 CFM range, and includes four-corner idle circuitry for a smoother, more consistent idle across all four throttle bores. It's machined from aluminum with a natural finish and installs as a complete, ready-to-bolt-on assembly.

    Specifications:

    • Type: Complete carburetor baseplate assembly
    • Idle circuit: Four-corner idle
    • CFM range: 650-800 CFM
    • Material: Aluminum, natural finish
    • Fitment: Holley 4150 carburetors
    • Part Number: 6465

    FAQ

    What does four-corner idle mean?

    Four-corner idle means idle mixture is metered at all four throttle bores instead of just the primaries, giving a smoother, more consistent idle.

    What CFM range is this baseplate for?

    This assembly is designed for carburetors in the 650-800 CFM range.

    Does this come as a complete assembly?

    Yes, it's a complete baseplate assembly, ready to install.

    What carburetor is this baseplate for?

    It's designed for Holley 4150-style carburetors.

    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.

    Read the full Shipping Policy
    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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