|On my old Z I installed them and had no real issues once I ued the settings you suggested. It was tuned and there were no issues there. That was 2007 If I remember right.
I have another friend that installed them about 3 years ago and his car just will not run right. Everything has been checked several times. We have all decided it is the injectors. He is all good until about 13psi and it cuts out really bad. Actually Harry, you might meet this guy this weekend.
We all came to the conclusion that I must have gotten lucky with the set that I got or perhaps their quality went to crap.