Fuelab Adjustable Regulator
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FUELAB® 515 Series Fuel.
Pressure Regulators are designed with performance and flexibility in mind. They accept port style and non-port style union fittings without interference. Several configurations are available, supporting carbureted applications as low as 1 PSID to fuel injected applications up to 125 PSID. The 515 Series Fuel Pressure Regulator has a -6AN return port located on the bottom.
Series II engines should set the base pressure at ~50 psi with the vacuum line disconnected as a start point.