Billet Adjustable Fuel Log (Fuel Line) for Holley Ultra HP Aluminum Dual Feed Carburetors
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JEGSPART NUMBER: 555-15603

Billet Adjustable Fuel Log (Fuel Line) for Holley Ultra HP Aluminum Dual Feed Carburetors

$13129$144.41You Save$13.12
ShippingShips on 11/11/2026
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-8 AN O-Ring Holley HP Aluminum Dual Feed Carbs 
Billet Adjustable Fuel Log (Fuel Line)
  • Holley Ultra HP Aluminum Dual Feed Carbs
  • Log Inlet (Feed) -10 AN
  • Log Outlet (Return) -10 AN Port (Includes Port Plug)
  • Log to Carburetor: -8 AN
  • Carburetor Inlet: -8 AN Port

    JEGS 555-15603 Billet Adjustable Fuel Log Features:

    • Adjustable for center-to-center combinations of Holley Ultra HP Aluminum Dual Feed Carburetors with -8 AN inlet size
    • CNC-machined from billet aluminum, these fuel logs (fuel lines) feature three internal o-ring seals, carb fittings, gauge port, and plug
    • Features log inlet (feed) -10 AN, log outlet (return) -10 AN port (includes port plug), and log to carburetor: -8 AN
    • Black anodized for great looks

    • Versatile Fuel Log for Customized Combinations

      Achieve precise center-to-center combinations with our JEGS adjustable fuel logs designed for Holley 4150 and 4500 dual feed carburetors with 7/8 in.-20, Barry Grant/Demon dual feed carbs with 9/16 in.-24, or the new Holley Ultra HP Aluminum carbs with -8 AN O-Ring fuel inlet threads. Crafted through CNC-machining from billet aluminum, these fuel logs (Fuel Lines) are not only durable but also highly adaptable. Featuring three internal O-ring seals, carb fittings, a 1/8 in. NPT fuel pressure gauge port, and a plug, these fuel logs provide comprehensive functionality. Simply add the appropriate inlet fitting (sold separately) to match your feed line, and you're ready to plumb and go. For added flexibility, by adding a second fitting, these logs can also be utilized as a return-style unit.

    Part TypeCarburetor Feed Line
    Product LineJEGS Billet Adjustable Fuel Logs (Fuel Lines)
    BrandJEGS
    Package Height2.5
    Package Width6.5
    Package Length13.9
    Weight1.35 PG
    Part CategoryPerformance Parts
    Outlet Size-8 AN
    Outlet Quantity2
    Fuel Line FinishBlack
    Inlet AttachmentFemale Threads
    AdjustableYes
    Maximum Center To Center Distance11.75 in (298.45 mm)
    Gauge PortYes
    Return Fitting SizeMultiple
    Outlet AttachmentMale Threads
    Minimum Center To Center Distance8.188 in (207.975 mm)
    Fuel Line TypeLog
    Inlet QuantityOne
    Part FitmentSemi Universal
    Fuel Line Inlet Size-10 AN
    Fuel Filter IncludedNo
    Return AttachmentMultiple
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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