Transmission pressure
 

I have a 2004 GMC Sierra with a 5.3. I was wondering if anyone has any idea what the standard line pressure for a stock 4L60E transmission with Vette servo installed; 1/2, 2/3, 3/4? I have the Superchips Flashpaq programmer and was going to increase the pressure, but I am not sure what safe and what is too much. I read on 1 of the forums about it, but I can not find it now. Any ideas of what it might be will be greatly appreciated.