I just got a Tweecer RT and LM-1 wideband and I am reading all the different stuff about setting it up and using it. Currently I have a 73mm Vortech mass air for 30lb injectors. Some of the things I have seen suggest using a Ford meter like the 70 or 80mm and using the Tweecer to set-up the calibration. It looks like the EEC Analyzer and the CalEdit both have preset mass air units in their software. It doesn't look like the one I have now is on either of those lists. I know I can still use it, but I would think I would have better results if I use one with known MAF values. Any suggestions on what works best with the Tweecer.