Car is 95 Corvette with LT1 and 4l60e. Has headers and muffler deletes. Ran fantastic before Opti died. Converted to 24x with torqhead kit. I have OBDX Pro VT and tunerpro RT for tuning. No matter what I set the desired and max idle to, it stays around 1400rpm in p/n and will drive itself up to about 10mph when in gear. Don't currently have the money to pay someone to tune it and getting really frustrated. I just want the stupid thing to idle at a normal RPM!!!! Am I missing a setting somewhere? Anyone have instructions on how to fix this?