my best 60' on my first trip to the track with my bone stock car and the stock 400 treadwear perelli's was a 2.1. like you I tried several different things. I personally think that wheel hop is my worst enemy at the moment. I agree with some of the other guys that slipping the clutch is probably the best way to launch the car with near stock power but I don't feel like replacing my clutch soon
like Mishri said, just get some drag radials and then it's way easier