Msd Digital 6AL

I have nothing else hooked up to the coil besides the orange + black- wires. I’ve tried another coil and no spark , waiting on my brother to arrive back home and will try his as I know it works , will let you know how it goes . Funny thing when I had the 318 in it’s place I had a cheap HEI $75 dollar unit with a Bosch coil ran for 4 years and sold it with the engine about 6 months ago. Msd package with new build $996 1year . No I got rid of all my old gear when I sold the 318.On my sniper screen it’s giving me the rpm signal when cranking so it’s getting power but not to coil.