You didnt mention what wheels/tires you have. If you have the saleen wheels, those are around 21lbs,m 17x7 iirc. Also, what tires are you using?
My vote would be lighter wheels and stickier tires. Unless you have higher miles on the shocks/struts, then my vote would be to replace those. You should be able to find a decent set of coil overs in your current budget.