MPH is deceiving because if you spin a little then hook up your mph is going to be higher. Best is to take your best 60' time and that MPH is your baseline for a solid pass. Your best 60' usually yields your best ET, not always too many factors but a good rule of thumb. Your 60's and ET's are better indicators. Couple that with a DA calculator and you can compare to others times running with your same mods.