Yep, it is believable. You had a density altitude that day/ time (Aug 22 at 7:23pm) at New England Dragway of approximately 192.9 feet (or lower). The temp of the time of your run, however, was low 60's (62.6 F, Dewpoint of 53.6 and Barometric Pressure of 30.12 at 6:55pm). At 7:55pm, your...