[Phillip marvetz]

What does it have for ignition? MSD and stock distributor I'll assume. With the distributor hooked up but out of the engine and the ignition on you can spin the shaft and it should throw a spark out of the coil. Spin it fast. If it's not throwing a spark you either have a problem with the box or the pick up in the distributor. You can check the distributor with an ohm meter, Disconnect the the 2 prong connector and spin the shaft slowly. You should see the resistance value changing as you rotate. If that looks good test the box, I use a paper clip to touch the 2 wires together that go back to the box. This should make the box fire the coil.