So the stock oil pressure guage hasn't worked since the FIP MPI install and motor rebuild. I have tried new sending units but that doesn't work. 1. Does anyone know how to fix this? I want to install another guage/sending unit in the timing chain cover port. But I seem to remember that the threads for this port are uncommon, and I don't want to pull everything to retap the port. Or risk shavings in the motor. 2. Does anyone know how to utilize the timing chain cover oil pressure port without retapping? Maybe a fitting? Maybe the thread pitch and a place to get the correct guage/sending unit? Or maybe just a secondary guage for the engine bay, if I could get the stock guage to operate? Thanks