Thanks for the info Chuck. Your recommendation for two O2 Sensors and 8 EGT's makes sense and cost less too. All the features you mentioned are included in the Altronics System and now, they also have a touch screen display but I don't really think I need that. I would just like to load a card into the laptop and readout info and store it for future use. I believe that I can install 8 EGT bungs and 8 O2 bungs on the headers (only use two but I can swap them around when needed). I also like the feature of using an AFR gauge and automatic ignition shutoff in the event of running lean (I will be running NOS as well). I like the Racepak stuff also but they are pretty expensive. I have heard that there has been problems with the RPM stuff but I haven't seen anyone with their system. Again, thanks and, if you have any more useful info, then by all means, send it along. Thanks Chuck!