I couldn't wait till the dyno to set my cam gear. I could feel a slight loss of low end power with the 3" exhaust, so I set my intake gear at +2, the car feels amazing now.
I think due to the large exhaust, i might not even have to set my exhaust gear at all. The 3" exhaust might be enough for the scavenging effect to work with a bit of overlap set on the intake gear.