I do not have a good computer (this one is at work) so I need a selfcontained scanner. The car is a 97 and I have a PCMforless tune. After the heads and cam (Lloyd Elliott & 224/230 112LSA) the new tune seems pretty close but I would like to get it better. I am not to the point of tunning it myself, but it would be nice to give real data to the tunner and to you on this board. What do you think of the AutoXray EZ scan 4000? or Autotap with a palm pilot? Any other ideas?