700 Hp on NA pump gas

Andrew, I will probably get flamed for saying so, but you don't need 700hp to max out top end very quickly with these cars. Even with your aero enhancements, the wind is not your friend.
Why is 700 the magic number?
If you need a 700hp dyno slip you could probably build a 650hp and still get one that says 700 on some local import tuner's dyno . ;-)