THIS. I don't know how you could have screwed this up, unless you hooked both primary coil wires to the same terminal. There should be two coil wires from the harness (from the electronics) I believe one is black or at least dark. That goes to NEG side of coil, but it will run either way. Remaining wire goes to POS side of coil.
Capacitor wire as noted is for radio and engine will run without that as well. You really should have that on there (POS side of coil) as it also supresses noise that can get back into the electronic ignition.
NOTE THAT THERE IS NO guarantee that a new part is "good"
