I just removed the injectors from my silvertop 20v and they have four holes in the bottom of them. It looks like two of them (larger holes) are the fuel nozzles - I'm not sure what the other two holes are for?
However, I seem to remember reading somewhere that the 20v injectors had 3 nozzles (one for each valve). These injectors have been removed before as No4 injector had two insulator washers under it .
Does anyone know if 20v injectors normally have 2 or 3 nozzles (maybe my injectors are from something else??).