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    • Billet Carbureted Fuel Pressure Regulator Street/strip Carbureted Applications Four Port Adjustable from 4.5 to 9 PSI Holley
    • Billet Carbureted Fuel Pressure Regulator Street/strip Carbureted Applications Four Port Adjustable from 4.5 to 9 PSI Holley
    • Billet Carbureted Fuel Pressure Regulator Street/strip Carbureted Applications Four Port Adjustable from 4.5 to 9 PSI Holley
    • Billet Carbureted Fuel Pressure Regulator Street/strip Carbureted Applications Four Port Adjustable from 4.5 to 9 PSI Holley
    • Billet Carbureted Fuel Pressure Regulator Street/strip Carbureted Applications Four Port Adjustable from 4.5 to 9 PSI Holley
    • Billet Carbureted Fuel Pressure Regulator Street/strip Carbureted Applications Four Port Adjustable from 4.5 to 9 PSI Holley
    Sale!

    Holley Billet Carbureted Fuel Pressure Regulator, 4-Port, 4.5-9 PSI | 12-707

    Vendor: Holley
    Part Number: 12-707
    Save $50
    Sale Price $399.95 Regular Price $449.95

    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 Holley fuel pressure regulator precisely controls fuel pressure between the fuel pump and carburetor. Excess pressure for a given needle-and-seat assembly can cause flooding or drivability issues, so this fully adjustable regulator is factory pre-set and ready to fine-tune to your engine's needs.

    Specifications:

    • Category: Air and Fuel Delivery
    • Pressure Range: 4.5-9 PSI, Adjustable
    • Inlet: One 8 AN O-Ring Port
    • Outlet: Four 6 AN O-Ring Ports
    • Restriction: 0.437" (7/16")
    • Material: Aluminum, Hard Coat Anodized
    • Style: Non-Return
    • Fuel Compatibility: Gasoline
    • Product Type: Fuel Pressure Regulator
    • Warning: California Proposition 65
    • Warranty: Manufacturer's Limited 90 Day Warranty
    • Part Number: 12-707

    Per Holley's data this regulator is also compatible with Diesel #1 and Diesel #2 fuel. Includes mounting hardware, AN fittings, and three fuel pressure gauge mounting options (gauge not included).

    FAQ

    What is the adjustable pressure range?

    4.5 to 9 PSI.

    How many outlet ports does it have?

    Four 6 AN O-Ring outlet ports, plus one 8 AN O-Ring inlet port.

    Is a fuel pressure gauge included?

    No, but three gauge mounting options are provided.

    What fuels is it compatible with?

    Gasoline, as well as Diesel #1 and Diesel #2 and methanol/alcohol per Holley's specifications.

    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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