I have been chasing a gremlin for months. I've replaced many parts, verified fuel pressure, verified that I have no vacuum and/or exhaust leaks. My car still has a slightly rough idle and seems to idle really rich. My BLM stays at 142 which I think is a bit too high. Ive upgraded the fuel system (pump, hot wire, regulator). I also put in a new coil pack, plugs, and wires. I put in an lt1 MAF sensor and translator. I replaced the o2 sensor. The only thing that I haven't done is replace the original injectors. Can a bad 30 year-old injector account for a high blm?