I had to work at reaching 24psi boost, now it hits 25 without trying. Driving it normal, I notice only a slight improvement in throttle response. Mash the throttle and you will know when it falls off the step in the pin. I hit 28 before I backed out of it. I went from 45 to 70 like, now! No smoke on the step like before, some but not severe off the step. I'm OK with it for now. Once I get the spring and injectors in I'll work on the fine tuning.