Inlet Needle Steel

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Overview "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. Inlet Needle Steel Seat Size 0.150", Adjustable Features Compatable with alcohol, benzine or acetone additives. Adjustable Steel Inlet Needle Operation Is Simple Show more