wont start but turns over strong???

my 65 Barracuda is driving me nuts, it all of a sudden wont start? Normally its three pumps on gas pedal and starts right up! Yesterday went to go after just filling up with gas Friday night and it would not start at all! Just turns over and try's to go but not start. I thought I had flooded 4bbl carb, so let it sit for 15 minutes and tried again but no go. Went to get some starter spray and tried it and no help either! Finally battery just gave up and that was it. I took battery to work with me at the golf course this am and recharged it, tried again to get her going this afternoon for a cruise, no go again! I am boggled for sure and put her up for sale as I am so depressed! I spent so much time and money on her and just something simple is blowing my mind! It had a mopar electronic ignition upgrade kit, simple set up and as I said its turning over strong, I must take battery again to work in am to recharge it once more. I am now frustrated beyond statement as not knowing what to check next. All wires are looking good and connected. Where do I go next, it is something simple yes??? Help me please....

65 Cudalover always but frustrated for now!