Aeromotive 14139 - 98-02 GM LS1 F-BODY FUEL RAIL SYSTEM - Manual (Page 4)

20. Inspect the OEM fuel supply line o-rings and replace if necessary. Place a light coat of oil on the fuel
supply line o-rings and the supply line adapter fitting to ease installation. Connect the AN-08 tee
adapter fitting to the OEM fuel supply line.
21. Connect one AN-08 90-degree hose end to the front of each fuel rail. Plan a route for each of the two
lines between the fuel supply tee adapter and the fuel rails, measure the two lengths of fuel line
needed. See section titled Hose and Fitting Assembly for fuel line assembly instructions. Once the
hoses are assembled, ensure there is no debris in the hose and install them.