2nd gear full throttle- Run 3

This chart shows RPM, injector duty cycle percent, speed in MPH (despite what legend says), degrees of timing advance, and injector pulse duration in milliseconds. I've been trying to determine the source of the oscillation in the fuel curve. Also, I'm not yet sure if the 2mph speed increment limitation is with the BlaZT cable, Data Scan s/w or my VSS setup (speedo reads smoothly FWIW).