Since I have a slow little ITC car, I usually nail the gas as soon as I can. No one notices as there's not that much noise or acceleration, but it does help. I've tried the running start from way back there...gotten away with it once, passed seven cars by turn one. Tried it again several years later, got busted, had to let off, get back in line, and got passed by the remainder of the field when the green dropped. However, if I had to wait until the start finish from way back there before I could pass anyone, then I might as well not even try. That's part of the strategy of the race.