Anyone know a good place to get a control unit-35pin for a 78 280z?

Most advertised on ebay , that say they fit a 78 280z are not a 35 pin

unit ...thanks for any help

I would be more concerned with the part number than number of pins.

A11-600 000 Not sure if the 78 interchanges with other ecu's or not .. does anyone know? ... I have seen some threads that say they interchange years 75-83 ... Would prefer the exact # match , but might be difficult to locate ...

They do not interchange.Manual ones are different from stick models.Later Z's had 02 sensors-earlier ones used thermal sensors.One thing to note-all pins are not used in all applications..