After each "timed" run, you get a print out slip that has your;

Reaction time(on last bulb)
60' time
330' time
1/8 mile time/mph
1/4 mile time/mph

The DA6plus is the best thing since sliced bread.
Replaces distributor module.
Or use a billit distributor made for it(most dont have a vacuum can).
Has 2 rev controls.
One for burn outs. It's triggered when the roll control button or seperate switch is activated.
Other is for your run(contiunous).
Both can be set at whatever rpm you want.
Start retard(under 800 rpm).
Ignition kill(anti-theft) setting.
And adjustable retard for power adders. For instance, retards at whatever setting you set when n2o solenoid is on.

If you want the ulimate, the DA7 is it.
My buddy has one in his race car with a on board data logger.
Can down load each run info to a lap top.
Ramp in timing during the run, and adjust timing to each cylinder seperately.