With the Camaro, we used to kill a few tenths by changing the launch rpm and adding tire pressure so the slicks slipped a little. It worked great for the 6.0 index class (1/8 mile) we used to run. The car would go 5.70s in good air.

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax