That car should 60 foot 1.48 or so, if you pick up a tenth in 60 you will see two tenths at the finish line. You think I'm crazy but brush your tires with WD 40, yes I said that, if you don't believe me get an old tire, wash it with good, then put WD 40 on it, it will be as sticky as ever. You can save old slicks like this to get you by. After you get the car working right then start tuning the motor, to tune a motor when the chassis is off is wasting time.