Proflow Fuel Line, 3/8 Stainless Steel Tube, Dual Feed, Black Fittings, Suits Holley 4160, 8-21/32 Centres, AN6 Inlet , 1/8 NPT Gauge Port With Plug - PFEFS41606Part Number: PFEFS41606 Replacement stainless steel, anodised fittings, fuel line kit for your Holley carburettor. Order the part that matches your carburettor specs and keep the fuel flowing. Features: For Holley carbs AN6 inlet Tight Radius for maximum clearance to intake Stainless Steel Tube Fits 5 16" or 3 8 fuel hose depending on fittings used Accepts AN6 Fuel bowl inlet fittings 1 8 NPT gauge port with plug fitted 8 21 32'' Centreline suits vac