This may have been covered already but I'll do it again just for info. Most, if not all of us with old street rods also have a "new" vehicle in the driveway that runs on OBDII. Somewhere in the bottom of the toolbox is a dwell meter gathering dust but, as yet, have not updated the required "newer" tools. A short list of newer tools includes a code reader, noid light and non-contact thermometer. Most of us (I think) also have a smart phone even if we don't use it to keep up with trends and play Angry Birds. There is an app for the phone and tablet (surprise) that will read codes. Torque app is free or the upgraded for $4.99 will read codes via a bluetooth connection on your ALDL. It will read codes, erase codes, give live data and display a neat dashboard to name just a few things it will do. Here is a picture of my tablet with one such dashboard.