darn electrical

Alright so I'm backing out of the backyard last weekend and the car dies {69 barracuda 318/727 electronic ignition chrome box } cranks over strong but no fire at all , try 4 times over a couple of hours then push her back down the drive and into the garage . I figure it's gotta be either the coil the box or maybe the ballast resistor but where to start ? Now this weekend I go out to pull a wire and verify no spark and just for the heck of it I try her first at she fires first click without even hearing the starter whirrr so now where do I start ? I can't drive her anywhere for fear she will die on the road on me:angry7: