Wiring an MSD 6AL-2

Maybe someone here can help me.....again. This time an MSD 6AL-2 ignition box to my small block in my Barracuda. I already have a "Ready to Run" MSD distributor and coil. Car was running fine. Today, I tried to wire my new MSD to my ignition EXACTLY per the instructions and it will not fire. Before I started, I called MSD and they told me to wire it according to the MSD 8360 diagram setup. It's a pretty simple job per the instructions, but I"m having pure hell. The little red light will light up for just a second and then it goes off when you turn on the ignition. I tried the small red wire to a keyed 12 volt source. Am I missing something? Orange wire to coil + and black wire to coil -. White wire to the orange wire coming from the distributor. Big red wire to battery positive, black wire to battery negative. Gray wire to green wire coming from tach. It just can't be that hard, but I have missed something in a big way. Please help.

Thanks as Always,
Darren
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