i have a 1993 n/a 300zx since the start this thing has been a pain in the rear. drove it for the first time timing belt snapped blah blah blah dropped a used motor in it got a new wiring harness the hole shabang. she was running great for a bit then started running really rich. broke the top end of the motor down and come to find out the mechanic who did the work put copper sealer on the egr to seal it instead of bolting it in properly. thinking it was just the vacuum leak causing it to run rich, got everything put back together and same issue it runs better but still really rich. ive checked all the injectors they're all within the 10-14 ohms. any ideas? anyone in my area be willing to give me a hand? know a good mechanic thats not going to drain my pocket and will get the job done right? i live in the north texas area