I'm not sure what the conversion is but 8.0-8.1 @ 92-93 is what I typically will run in the 1/8 which is 12.3-12.4 @ 116-117 this is w/o nitrous of course
I hook much harder on the street than the track with stock tires.
BTW what was your times? My very first time at the track I ran a 8.42@91 w/2.19 60' it takes some practice.