I don't know about you, but I'm just under 800 with my 4.0 and have heard of others here making that or more on a well-tuned 3.4. That being said, you certainly have room for improvement without going turbo, at least another 100+ HP. My 800 WHP feels anything but slow and in fact, won't even hook in 1st, 2nd or 3rd in the street on my Michelin Pilot Sport's. It's much closer in terms of balls-to-the-wall straight line thrust to my ZX14 than to my Gen IV modded Viper, or Z06. How can 715 RWHP feel slow? Most sports cars make a bit over half of that in stock trim. ROTFLMFAO. Speak to Torrie about a pulley upgrade and a tune...and get another easy 100 HP or more, with that and a new less restricted intake. (GT Guys)