Crazy, if you're anywhere close to a track, try it there and practice the launch and the reaction time. That will tell you a lot.
I use the G-Tech, but it's some optimistic both as to ET and especially MPH. Trust the track time slips the most.
Reaction time counts a lot in a heads up race. I beat lots of faster cars at the track when the driver is "asleep at the tree".
Rev
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'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph
1/4 mi.
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