VW/Audi Injector and rust spots in my 603???
 

So yesterday i opended my 1987 300SDL injcetor for a preesure test, i opened one and looked at it and it's says "AUDI/VW PSI 130" ( i pulled out 2 VW/AUDI INJECTOR) and the others says "BOSCH 135" (4 Bosch injector) Do i have to be concern about the pressure diffrences the car runs fine... and about the rust, i found it in the last injcetor slot it was rusted around the area and it begin to rust the injector in there should i return this engine, or is it fine....

THX

The injector body is just a container. It really does not matter at all what it says on the outside, its what nozzle is inside and what pop pressure it has been set to that matters.