[Eric Merryfield]

On a two barrel beast like the Gremlin, there is a noticeable difference. With two step the extra accelerator pump shot, can help with reaction time, and car launches tamer, a tick quicker .01 for same launch RPM 60 foot. 1/4 mile no real difference. However the car launches much harder off footbrake and mashing it, and you can adjust your RPM up and down as needed for reaction time.

My fuel injected cars/trucks seem to really like 2 step. Test with dakota a couple of years ago was .02 quicker in 60 foot and .03-.04 quicker in 1/4 mile.

For real accurate data, you would want to datalog the throttle position just to make sure you are at 100 WOT especially if you have wheelstand or hard landings going on also.