I'm new to powerlifting so my question may seem too simple to some.

I've only been incorporating a powerlifting style training program for the last 2 month, during which time I've managed to increase my bench from 120kg (264lbs - stuck at this for weeks) to 140kg (308lbs - 3 plates a side). I use Westside principles.

I'm currently a lean 190-195lbs (fluctuates during the day), 5' 9", and obviously use gear. I also stay on year round.

Am I deluded to think I can achieve a 400lb bench (raw.. for the record) without having to gain any more size? I would like to stay under 200.

Competing is also not an interest of mine.