'70 Dart 392 Project; what direction?

I just looked at the core 2012 5.7 I picked up this week and the coils are 3 wires. Not real versed on coils and different years but are there some that are 2 wire like you mentions?
Does that engine have a harness? My coils have 3 pins on them, but only two wires going to them. I don't know what the extra pin is for. Since I cut down a factory harness, I really never paid any attention to it until now. Rock auto shows the same part number for coils between non-vvt and vvt engines. I always thought the coils were the same because when doing an eagle head swap, I've always read the only parts needed were heads/rockers/pushrods, valve covers and intake. Nothing about coils.