ok so i cleaned up and tuned my car in the past week. did plugs,wires,dist cap and rotor,oil and filter. cleaned the K&N FIPK filter, and cleaned my engine bay. so today i was out driving and i wanted to test my 0-60 time. cousin got his phone out and we used the stop watch. i ran 0-60 3 times and they were all about the same. !st 5.7 2nd 5.9 and 6.2 but to be honest i was expecting lower?? i dont have the spare tire,stereo amp and a box with spare fluids and car stuff in my trunk and my 6'3'' 200 lb cousin in the car with me lol im about 5'8'' 150 lbs. im going to take the spare out(i have AAA and the jack is missing from the car so no point really???) and the box of junk. any techniques to launching or anything?