I don't know if your dead should be bigger or not. I'm shooting for 2x bw which for me right now would be 360. My squat on the other hand is pretty bad by comparison its only around 255 and definitely the least developed of my lifts. I'm getting better but just want more progress.
Btw I don't use any gear on my lifts but i did just start using chalk on deadlifts and its made a huge difference for my grip. I don't worry about that at all anymore where as before my grip would always give out early.