Looking for advice/tips

When you launch off the two step, are you using a brake pressure switch or a button? The AMX I race has a transbrake now, but I used to launch with a two step and a brake pressure switch. The Carter AFB carburetor does not have enough pump shot to be able to foot brake the car. Some people like to launch having the converter flash, so they leave at a lower rpm. But most adjust there reaction time by starting line rpm. Alot of the bracket racers around here use a starting line control, that sets the rpm the same when staged, and it is adjustable to change their reaction times.