Barracuda not starting after being parked for five years

Hello all,

It has been a long time since I've posted here, or did any work on my car, but here goes.
I have a 67 Barracuda with a 5.2l Magnum in it. Mopar Electronic ignition with an MSD coil. The engine ran when it was parked five years ago. After much moving around, I finally got my car back and set out to start her today. The engine turns over, but there is no spark. I put a multimeter on the coil with the key in the "on" position and I'm only getting 4.5 volts, meanwhile the battery shows 11.8.
Please help me figure this out.

Many thanks,
Stan