Holley Non-Adjustable Inlet needle & seat - Viton (HO6-511) 30501-S0164 E85 and Methanol fuels (When

E85 and Methanol fuels (When used with Alcohol fuels like E85 the service life of the pump will be shortened and filter maintenance must be increased)

water / coolant and also air lines

Is your combination not producing that much horsepower

PSIa sensors are required of you wish to measure vacuum

TAARKS SR20 Engine / Gearbox Sandwich Plate

Holley Non-Adjustable Inlet needle & seat - Viton (HO6-511) 30501-S0164 E85 and Methanol fuels (WhenHO6 511 . 0785 VITON NEEDLE & SEAT Size 0. 0785" Part Number: HO6 511 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.