Increase Squat and Bench?

Hey guys just wondering if there are any excercises that I can do that will result in my squat and bench dramatically increasing? I'm thinking of trying to be a walk-on for my university football team.

My current stats:

Height: 5'9
Weight: 186
1RM Squat: 275
1RM Bench: 230
Position: FB

At the moment I do 3*5 for both squat and bench. Any advice would be nice.

At the moment the only other thing I do are lunges (with weight) for legs and DB press for chest.

^those are excercises i do other than squatting and benching for legs and chest

Start doing plyometrics to increase your squat....It will make a huge difference.

Deadlifts definitely will pick up both but you have to be careful not to over train. (too many sets)

Alternate high rep and low rep days for all body parts.

12-15 (never go to failure)

4-8 (never go to failure)

All strength is developed on low set # high rep days.

May throw in some jump training exercises.  They work well.