75 Dart /6 wont start. Electrical?

Hello all!
I have a bit of a tough one that I'm hoping someone can help me diagnose. I have a 225 slant in my 75 dart sport and it has been sitting roughly for about 17 years. Occasionally I would do some storage maintenance on her but I wont say she didnt get neglected. Here's my issue. She will turn over, tested starter relay, bought new coil and ballast resistor just to be sure, new plug wires. Also I am getting spark from plugs when pulled and tested now I did prime the carb with a quick shot of starter fluid expecting at least something but nothing. It seems like no juice is getting to her but I cant figure out why. Any of you all out there ever have this issue? If so what am I missing here?

Thank You!!