I currently use the NISMO 320cc. They are underrated for sure, as they are producing power in excess of what a 320 cc should flow at 90% duty. AND after a long, hard run, you car touch the injector bodys, and they are staying very cool to the touch. I am going to be selling these injectors, if anybody wants them. I am upgrading,.... agian....to a 550cc NISMO, when the "BAD BOY" turbo is ready. I guess I will be selling my RADICAL T-3 also, perhaps as a combo? but not quite yet.
funny funny story .......... when i bought my 86 N/A it had 550cc nismo's on it.......... it seemed to run fine. Then i caught fire... when i rebuilt it i put in the stock N/A injectors........ and guess what.. i think its faster now...... probably too much fuel before.