Take the spare out, the spare cover, floor mats, girl, pretty much anything and everything removable. That weight really effects the LS. I had 5 people in the car today and it didn't pick up worth a D*** Talk about 8 and a half seconds to 60 with a full car...So a 60 pound spare will make you run ABOUT a 8 hundreths of a second quicker...every little bit counts. Run octane booster as well and only run him with enough fuel to race him and get you home. There is no way you can add power to your car in such little time, just lighten your load and go.