2nd gear launch

Wallace says it takes almost 60 more hp to get a 3500lb car from 10.3 to 10.0, 633 to 691. I believe it.
But combination improvement can help a lot, without making even one more horsepower. Rear gear, and converter,can pick a car up a half second without touching the motor. Too bad its too labor intensive to use temporarily in slowing a car down!.