Worst thing you can do is try to compare that 440 to that LS. Completely different animals that want different things to go fast. Also, most people I've met who "want" 650hp have either never had it, or find out very quickly they made a mistake. In most cars its simply too much on the street even for spirited drivers.

I hope you get that 69 squared away, 68-70 RRs are my favorite.