Wow 730! I was hoping to break 600hp on pump gas and I would've been happy with that !I wouldn't worry about the compression with the right amount of boost/timing it will be fine. We had a car we built that ended up at 9.6:1 with heads/cams and a 2.8 standard inlet kb. 17lbs of boost/17 degrees of timing, no detonation on 93 and made 730.
Be sure to post up what it makes!