The LB7/LLY pressure sensor is only scaled to read up to 180. I've scaled them to read up to around 205 MPA, and set them in the tuning to run 200, and had them hold there. It's not good for the pressure sensor as its not meant to run there. LB7 injectors seem to hold up to the pressure OK, but LLY's not so well. There is a pressed in ball in the side of an LLY injector, and it is known to come out at anything north of 175 MPA of pressure. Many people get lucky, but I seen somebody lose 5 injectors in one calling for 178 MPA for rail pressure.