TPS adjustable?

Is there a setting somewhere that would allow be to calibrate the TPS reading?

To be specific a friend with an LS1 GTO (Gen 3 LS1B) is messing with his idle screw and IAC settings and asked if I could "re-center" the TPS to 0.5 volts which is recommended of whatnot after he finds his idle screw setting that is causing it to be off...??

TIA!!!

No it can't be adjusted or calibrated in the software. If you need to open the blade and it takes the TPS volts above 0.67 Volts, it will cause some quircks to the PCM. Is it an aftermarket or OEM TB?

Thanks! I'll find out Monday