Ok so I took my car out for a test drive after getting everything up and running properly, this is the car in my sig that i'm referring to. I've got an aftermarket torque converter, and supposedly the trans that I bought from this guy was rebuilt and has a shift kit in it. Before taking it out I used the middle bolt on the passenger side of the transmission to set the throttle valve to 0 psi in neutral. When I take it out I put it into the Overdrive selector and start driving, the rpms will jump upto 4-5K in no time and although it sounds like it should shift around then the shift never comes. I've never used a shift kit or aftermarket torque converter so idk how much they affect the shift points but if I remember my old stock mustang would shift to second round 2000-2500 rpms. Anybody who can help at all i'd appreciate it.