Hmmm I would stay away from engine mods for now, and work on that suspension...hehehe

I'm not talking bars or anything like that, cuz those dont matter if you're going in a straight line, but good a good shock and spring/coilover combo will definitely help your 60 foots.

Tires play a crucial role also. Try a set of Falken Azenis on some 14" steelies, they'll hook up better than your Ecstas, plus you cant go wrong for the price. If you're on 15's or bigger, the 14's will also shorten your LS gearing and also help bring those times down a minor bit.