High Speed Pill Holder EN7003 Product:-8AN O-Ring to -6AN Check Valve (Suit Screw-In Bypass Pills) MLS Head Gasket 54445 CL54445

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High Speed Pill Holder EN7003 Product:-8AN O-Ring to -6AN Check Valve (Suit Screw-In Bypass Pills) MLS Head Gasket 54445 CL54445High Speed Pill Holder 8AN O Ring to 6AN Check Valve (Suit Screw In Bypass Pills) EN7003 7003 A high speed bypass is used to return extra fuel to the tank at high RPM for more horsepower and higher terminal speed. To add a high speed to an engine you need a high speed tee, check valve, pill holder and bypass pill.