I use a WB I put together in a kit from TECH Edge years ago when WB's were rare and expensive. I hook up a laptop to WB unit and data log the entire run down the quarter mile. I just strap the laptop to the passenger seat. I have the laptop set to start logging the run as soon as rpm hits 3500, which is the during the burnout. Pretty easy to jet the car at WOT, I set up the car a little fat for the weather and leave it. But the interesting data is while the car is on the throttle stop. Found out the car is pretty rich (11:1 AFR) while on the stop, which was causing the car to cut out some times in the morning during the first few runs. I figure if I get the car up to say 12.5:1 AFR while on the stop and also at WOT, then the car will be more consistent. Not there yet.