I'm not an expert, but what I have been doing with A-Q and A-J is raise roughly 4-5x BB (usually $4-$5) if I am in late position in an unraised pot. Don't know the exact figure but probaby 60% of the time I take it right there. I wish I had access to my Poker Tracker here at work....but I believe that I have had A-Q roughly 10 times in the last week and have won with it 100% of the time...whereas A-A is around 75%....K-Q on the other hand is my nemesis.
I have been forcing myself to see fewer flops and raise far more than just call - it has made a significant difference in my game.