You should get your squat up to your deadlift, and your bench up to 315, then add 5 lbs of muscle.
You need to change up your routine. Do you do power cleans? Military press? Sprint? Do you train wrist curls and extensions, and pronation, suppination? You should do asymmetric deadlifts, 'shovel lifts', rack pulls, and an exercise where you hold the barbell just off the ground in deadlift position for an extended period of time, say 2 minutes- using 95 lbs to start out with if you lack endurance. Once a week do the Supersquat method - 20 reps 1 set, heavy as fuck. Isometrics are important as well. You do rotator cuff work? Face pulls? Pull ups? Reverse pseudo-planche? Ab wheel? Cable wood choppers? Do you do throws (sandbag, keg)? Long distance carries (shoulder carry, yoke stand, vest, farmer's carry, one or more of)? The long distances carries and asymmetric lifts are a big one.
Check out Rock, Iron, Steel by Steve Justa.