Whats a 2 step?

[lx mike]

It's an ignition device that lets you set two different rev limters. You have it wired so that it's on first step when you hold button and when you let go of button or however you have it set that i goes to the second rev limiter. EX; set #1 for 3-4000 rpms and when you release it it goes to second limiter set at 6000 rpm's.
That way you don't need to watch the tach you just hold button and floor it and your ready to 'rock"!!