Well, its time to start thinking about which motor, and the LS3/480 or 525 are my choices (personal choices). Id like to hear from anyone running either. My main concern is if I go with the 525HP, how much do lose at the bottom end with the bigger cam. Is it going to be real finicky in stop and go traffic? The car will be driven as much as possible, and Im thinking more about other family members driving it. 3:55 gears and a Tremec 600 complete the drivetrain.