1972 Dodge Colt
I will wire to my Line Lock Button.
You run 12 volts thru the switch to the 2 Step.
When you hit the switch, you can then mash the accelerator and the 2 Step cuts the RPM at the setting.
Release the button, bam the RPM Limit in the 6AL keeps all the parts inside the engine.
This will allow me to stage and not worry about getting to the RPM I want to launch it.
Not a real good splaination, but I thinks you get the idea.