Hello, i would like to compete some day in a powerlifting event. I would like to know what kind of training or program i should use to get as strong as possible.

Here are my stats:

Age, height weight: 20, 5'10'', 176 lbs.
training history: 4 years weight training, done Max-ot, madcows 5x5 and some WS4SB.
Bench max: 205 lbs
squat max: 295 lbs
Deadlift max: 355 lbs