I just finished slotting the TPS and getting the idle voltage in range on my Fast 105. If you have an old Palm Pilot laying around and can find an LS1M setup, it makes jobs like this much easier. It is not fast and no replacement for EFILive and only works on LS1s, but the Palm Pilot can lie on the fender will or valve cover while adjusting the TPS. Makes it simple. It is also handy for quick trouble code checking/clearing.