I agree Andy. I tried to talk the owner into doing the 2 circuit conversion, but he went ahead and bought the 3 circuit blocks from QF. Hey, I just drive and wrench on the car...he pays for it, lol. It is a race only car though, so it's not critical we get it razor sharp. It runs great at WOT, goes up on the transbrake real nice, and idles clean. The tuning we've done has made it a lot cleaner, but it could definitely be better.