I've been trying to figure this out for a while and can't really find an answer. The next thing on my list for my turbo kit are fuel injectors. Do I need a new/different fuel rail for 550CC injectors?

 

What engine?

 

2JZ-GE

10char.

 

stock rail is possible

 

Assuming this is on a 2jzge, then no . . . not necessarily. Some people use RX7 injectors. I used some Precision 525's that were modified by boostwerx or something like that. They need to be top feed and high impedance to drop in.