65 cuda help

i just bought a original 65 cuda and I'm planning on making it my car with a restore or so. I had a 68 cougar before hand so i did my hw on that. So thats why I'm here I'm completely new on this cuda topic. what is this ss springs everyone is talking about what kind of ss? and also i need to know what would be bolt on for the cuda as in brakes or springs or anything in general what parts from what cars can i put into the cuda? any suggestions? i would really appreciate it if you guys can help me get my head around this new plymouth topic and I'm hoping for some insight on this project.