I run 8.2 to 1. I would suggest you run as low as you can and let the blower do it's thing. Remember that when you are idling around who cares how fast it is. It's when you get on it that the fun starts and the lower your compression ratio, the higher the boost you can run and that is where the hp is made. I run meth injection sometimes. Only when I run 10 lbs of boost. What I have found is that it works good at WOT but can make your engine cough and sputter at lower boost settings. Maybe I'm doing it wrong but that is my experience.
