i agree with dstyrrell on that, i also think that my vr is sluggish from idle to 3 grand but once you hit 3200 rpm all hell breaks loose right up to the red line, surely it would be better to improve that bottom end section and get that torque all the way from idle, but playing devils advocate i do dis-agree with the rough surface airflow thingy, i can see how it makes perfect sense and yes a dimpled ball does go better but if that were the case why have people been smoothing out the ports for years and all saying it works? and why do car manufacturers try to produce smooth flowing lines?