Hey guys,
First post here. I tried a search but no luck.

Old 70 Nova 350sbc. I pulled the Accell HEI distibutor out to put a new intake manifold on awhile ago and can't remember the wiring to it. I can't remember if there were one or two wires to it. I have a few wires hanging but I know some were not used and were hanging there already (should have marked them )
One wire is hot when the ignition switch is on, I assume that one goes to the tab marked "battery". One is marked battery the other is marcked tack, the center is ground?
Do I need to put a ground wire on?
Do I only need one 12 volt wire on the coil?

Thanks,
Brad