I added a Trans Go shift kit to my car, now it short shifts on the 1-2 shift at 5700 RPM @ 39MPH. It is programmed to shift at 36mph & 6000 on the 1-2. It is exceeding the MPH, but not reaching the RPM? The 2-3 shift is fine. Should I start changing the RPM or the MPH to dial in the shift?