Actually now I'm curious about my pump.
The head from my 4d55 has the larger injectors than my 4d56 head. And I have a tc05-10a turbo, which I understood were on earlier. When I took my pump to be rebuilt they ran the numbers and said it looked like it was originally an N\A motor's pump with a turbo top half(diaphragm and such) put on. So they rebuilt the pump and set it up according to turbo specs. Anyone know a good place to run the numbers off pumps?