Really resist the urge to hit the jets early in the ride. Let the big boys and girls go up the road. There will be lots of pacelines at lower speeds and your odds of riding all day increase dramatically if you don't burn up all your matches in the first dozen or so hours. Now if I can only get myself to take my own advice, I'd be much more effective at 24-hour races!
That said, the avgerage pace you identify above is enough to win the race in many years (although I know some folks who are shooting at 500 miles this year). If you can do that, you definitely don't need my advice, and I look forward to you lapping me repeatedly! You also won't want to let the big boys get up the road. My understanding is that the winner of the event always comes out of the lead group from the 127-mile loop.