Okay thanks for the info my trans is stock do you think since I have the line pressure upped that I shouldn't do the shift kit to? I have zzp's 1.0 pcm and tune I dont know how much they up it but it made a huge difference. The only thing I did was have the tranny flushed with synthetic at my local gm dealership when I first got the car at about 100,000 miles I've had the car for about 5 years and it has 120,000 on it now i did a top swap so it has 3.29 gears. The motor is fresh with only 5,000 miles on it since complete rebuild the major mods are in my signature.