Well after using a boost gauge, I found out I was at 8.5 PSI. Instead of adjusting the wastegate, I thought it would be easier to add an in-line manual controller. I'm aware that without adding more fuel, there won't be a large increase in power but I wanted to see what difference a few PSI would make.

This is what I've noticed; when accelerating, the wastegate will normally start to actuate early, well before the max spring tension. This creates a slight lag once 4th gear engages. With the MBC, the boost curve is much sharper, pressure builds more consistently and stays there until you release the pedal.

I've been using less pedal lately and acceleration has improved. Its just nice to have a little more power when you need it, just push the button and you've got some extra get up.