Auto Meter Monster tach, shift lite and MSD Soft Touch rev control

How does the MSD setup work? I have looked on Jegs but doesn't say a whole lot. Do I need to have any other items to make this work (MSD box/Chips)? I have a all stock ignition in my Demon. Would like some sort of a rev limiter since is a four speed. Cheap insurance. Also, reason for selling?

It's pretty easy actually. Here's the wiring instructions, right from MSD.

Red - Connects to a switched 12 volt source.
Black - Connects to ground on the engine.
Green - Connects to the coil negative (-) terminal.

Trigger Pickup Wires;
White - If the distributor is triggered by breaker points or an amplifier, this wire needs to be spliced to its trigger wire.
Violet - If the distributor uses a magnetic pickup, this wire needs to be spliced into the positive mag pickup wire.

You would need a chip based on whatever you want the rev limit to be, say like 7,000 rpm. If you are definite and know which one you need, I will see if I have an extra for you.

Reason I am selling is because I don't need it anymore. I switched to an MSD 6 AL which has a built in rev limiter. I'm basically throwing it in with the tach and shift lite.