Moreless you want to give your car enough gas off of the line to put you on the edge of spinning out. To find you stall rpm for launching that is something that you should experiment with to find the one that works for you. What works for others may not work for you. You tires, weather, and track condition will all affect how hard you can push your car without spinning out.

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Red 2dr 99 GTP: Z7 t66, A/A IC'd, Custom Heads, 65# Inj, ST2 Cam, Meziere Elec Pump, JP Double Roller(with machined crank gear), Plogs, PLX W/B, Powrtuner

99 Regal GS (work car)