compression ratio on pump gas

I would like to thank everyone for their advice! I have decided to play it safe and go with a forged stroker kit and 9.7 comp with the r/t heads. The engine builder feels I can run on pump gas with no problems with this combination and we will be using the xe268h cam since I have aircare to worry about in my city.only bad part of the deal is 1 month before I will be able to put it in my car.