Holley Adjustable Inlet needle & seat - Steel HO6-515-2 Electric Fans The lifter valley is machined

The lifter valley is machined for hydraulic roller and flat tappets

By using this delete plug

ORB-8 O-RingsPack of 10

100" Superduty Pushrods 1 Piece Pushrod 8

Holley Adjustable Inlet needle & seat - Steel HO6-515-2 Electric Fans The lifter valley is machinedHolley Adjustable Inlet needle & seat SteelSize 0. 130" HO6 515 2 6 515 2 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 carburettors; a . 110" seat size should be used for Carburettors up to 735 CFM; larger seat sizes should be used with Carburettors 750 CFM and larger.