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Ships within 48 hours · Estimated delivery Oct 15 - Oct 20
3/8" Pitch x 1/2" Wide
new as-cast runner and chamber designs produce excellent flow numbers
Performer RPM Intake ManifoldSmall Block Chevy
Model 4175 and Model 4500
Holley Adjustable Inlet needle & seat - Viton HO6-518-2 Product:Size 0.120" 3/8" Pitch x 1/2" WideHolley Adjustable Inlet needle & seat VitonSize 0. 120" HO6 518 2 6 518 2 Most Holley performance carburettors come equipped with a Viton tipped needle. The Viton needle design is resistant to dirt and conforms nicely to the shape of the seat for superior sealing. For this reason it is not recommended to use a steel or titanium needle, except for racing.
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