Replacement needle and seat lock screw and adjustment nut for carburetors with black hardware. Works with all Holley carburetors with an adjustable needle and seatFeatures:Black lock screw and gasketBlack adjusting nut and gasketBrandHolleyColorBlackEmission Code5Product TypeNeedle and Seat Hardware KitPart Number34-7BK..
"Steel-tipped" inlet needles are necessary when using exotic racing fuels or alcohol or when using benzine or acetone additives. A .097" seat size should be used for small four barrel carburetors; a .110" seat size should be used for carburetors up to 735 CFM; larger seat sizes should be used with carburetors 750 CFM and larger. The following steel inlet needle and seat assemblies are available fr..
"Steel-tipped" inlet needles are necessary when using exotic racing fuels or alcohol or when using benzine or acetone additives. A .097" seat size should be used for small four barrel carburetors; a .110" seat size should be used for carburetors up to 735 CFM; larger seat sizes should be used with carburetors 750 CFM and larger. The following steel inlet needle and seat assemblies are available fr..
"Steel-tipped" inlet needles are necessary when using exotic racing fuels A .097" seat size should be used for small four barrel carburetors; a .110" seat size should be used for carburetors up to 735 CFM; larger seat sizes should be used with carburetors 750 CFM and larger. The following steel inlet needle and seat assemblies are available from Holley.Features:compatable with alcohol or when usi..
Inlet Needle Viton® Tip Adjustable 0.110" Seat Size. Viton® is a registered trademark of Dupont Performance ElastomersBrandHolleyEmission Code5Product TypeNeedle And Seat AssemblyPart Number6-504..
Inlet Needle Viton® tip 0.097" Seat Size, Adjustable. Viton® is a registered trademark of Dupont Performance ElastomersBrandHolleyEmission Code5Product TypeNeedle And Seat AssemblyPart Number6-506..
Inlet Needle Viton® tip Adjustable 0.097" Seat Size. Viton® is a registered trademark of Dupont Performance Elastomers BrandHolleyEmission Code5Product TypeNeedle And Seat AssemblyPart Number6-508..
Inlet Needle Viton® tip Non-Adjustable 0.110" Seat Size. Viton® is a registered trademark of Dupont Performance ElastomersBrandHolleyEmission Code5Product TypeNeedle And Seat AssemblyPart Number6-510..
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