BTW, I leave the gear selector in "S" at any speed below 40 or so...I think it also changes the 1-2 and 2-3 shift points. Really makes the car more responsive in city driving. MPG hasn't really changed, either.
I also found that I wasn't getting full throttle...with the pedal all the way down, the lever on the injector pump had another 1/8" of travel before hitting its stop. I adjusted the linkage to the pump to compensate for this, and it felt like I was driving a completely different car afterwards.
Also, welcome aboard!!