Bro you should be running WAY better times in that Venom GT... Also you're hitting your nitrous waaaaaaay too late, hit it when you shift into 3rd or 4th gear. Try my tune out, I'm at 706 but the numbers should still be roughly the same for yours and I run consistent 12.01s 1/2 miles at 225mph: Nitrous - 162/3.0 Final drive - 3.34 Tire pressure - 29/71 Dyno says I should be hitting 11.8s 1/2 mile but with perfect start and all perfect shifts I don't know how I could hit that prediction. Dyno also says, however, that top speed is 225mph, and it's dead on at 225mph, so who knows. That's the other thing, with your tune you're at top speed way before the end of the race. With mine I hit top speed right when I cross the finish line which is exactly what you want. Trust me, try those numbers out and hit your nitrous way earlier; you'll be a hell of a lot faster.