close to maxxing out is bad. the lower the injector duty cycle the better mate, depends what management you are using, aas to whether 550's are too big.
550s would be perfect.i ran 1.5 bar boost and they said my injector duty was up at 60 or 70percent.they would be perfect because if your forged ul want to run 1.5 bar boost or push it to the limit at least if you have the bigger injectors this option will remain open to you