During last winter, Jim and co-conspirator on the car, Jason Perilli, took 150 pounds out of the Mustang by installing a Granatelli Motorsports tubular K-member and control arms, along with coilovers. Out back, a 4-gallon fuel cell replaced the stock tank. The car now weighs 2,965 pounds with driver. The result was a two-tenthsquicker e.t. and somewhat improved stability down-track.