I have been benching for a little while now, and the left side of my chest is bigger than my right. my left was a little bigger before i started doing weights but now it seems even more so. so, i did what i could with my crappy bench and tried to even it out, and im pretty sure it's as even as it's going to get... i also watch my arms and make sure they are spaced equally and in the same position. but i feel the workout in my left side and not my right. are there any tips or anything that could help me out?

Try using dumbbells instead of a barbell. By doing that your weaker side can't cheat by letting your stronger side do more work.

you could try not fixing the weights to the barbell.
You`ll be lifting even in no time

Do Dumbbell bench press, instead of barbell bench press