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The Hybrid Racing fuel rail has two -8ORB ports. One on each end. The side with the logo etching is the feed side and should be connected to a fuel filter which is the fuel FEED.
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This fuel rail is not compatible with the OEM Honda banjo / damper bolt, so you must replace the fuel line to use a -6AN or -8AN line.
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The center section of the fuel rail has a 1/8th NPT port. This port is intended to be used as a location for a fuel pressure gauge.
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If you do not use a fuel pressure gauge, you can simply install the provided plug.
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Be sure to use a dab of fuel-safe sealant on this thread to prevent leaks.
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The port above the HR logo is intended to be used with the OEM Honda B-Series fuel pressure regulator.
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If you are not using an OEM style regulator, you can use the provided 1/8th NPT plug and block this off.
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