TPI Torque Specifications

Below are the torque specifications as designated by GM for Tuned Port Injection intakes. Please note that some specifications are in lb. ft., and some are in lb. in.

                 Manifold to Runner Bolts                   25 lb. ft.
                 Runner to Manifold Bolts                   25 lb. ft.
                 Fuel Rail Attaching Bolts                    15 lb. ft.
                 Throttle Body Attaching Bolts            18 lb. ft.
                 Throttle Position Sensor                     18 lb. in.
                 Idle Air Control Valve                       13 lb. ft.
                 Throttle Body Coolant Plate              27 lb. in.
                 Throttle Body Cover Plate                 30 lb. in.
                 Power Brake Vacuum Fitting           108 lb. in.
                 Fuel Line Nuts                                   20 lb. ft.
                 Fuel Tube Bracket Bolt                      25 lb. ft.
                 Fuel Pressure Connection                 115 lb. in.
                 Pressure Regulator Base to Rail          44 lb. in.
                 Pressure Regulator Bracket                44 lb. in.
                 Outlet Tube to R/H Rail Retainer        44 lb. in.