with the right power and box, youll be close to 150.
I did 144.1 on 2 15's in a 7 cube box tuned to 45 on 1300rms.
There were a million different things I could have done to up the score a lot, but box size and power were an issue due to the class I was trying to get into.
If I could do it again, I would have done about 12 cubes w. a 4kw amp.
Edit: It was a MA audio amp, so probably closer to 1000 watts.