3bet more pre coz there's a caller, make it 9 coz standard 3bet is 7.

and what gder said, don't look to get 3 streets of value out of an over pair, any 2 is fine, i just bet flop to keep pressure on and maintain the initiative.

also fire bigger first time, like 2/3 so 12ish, sets up a shove for next street, ie preferably bet flop shove turn.