66caprice327

Hey guys new here, and new to the chevy world. I have a 66 caprice with 327 2 speed power glide. Now my problem is this car has been sitting for maybe 30 years. I have rigged a battery to it and it turns over like a champ. I pour gas in the carb, but no fire. I've changed the coil,plugs,wires, and the distributor looks to have been changed not long ago. Anyone have and idea of how i should approach figuring this car out? Oh and the battery cables were shot so i may not be getting enough juice from the battery if that's possible.