In my 93 z i have been having a problem when i am cruising and accelerating at a normal rate of speed i lose power between 1500-2000rpms you can watch the tachometer and oil pressure drop. I was thinking the opti?

 

I had the same problem a while ago when i had my 93 but mine became much worse at higher rpms. Which was kinda easy for me to figure out meaning were to start looking but then again youll never know.