As far as I know, Scott did a similar port job to my car. I bought the car when this engine only had 300 miles on it, so I didn't feel it before porting. The car pulls hard to the 8200 RPM rev limiter that I have set. I'm happy with my motor. It has been running strong for over a year now. I'm eager to see what my car will do at 20 psi which we will find out when it gets cool out.