Ferrari Part 29319 / 50.0557.990.0 Reference Angle For Counter in Ferrari 365 GTC4 (Mechanical) (Mechanical Table 042A Distrubutors, Ignition wires, Revised)

Ferrari part number 29319 / 50.0557.990.0, REFERENCE ANGLE FOR COUNTER, shown here as used in a Ferrari 365 GTC4 (Mechanical) (Mechanical Table 042A Distrubutors, Ignition wires, Revised).