which front spring would you run?

[gteatr6]

I'm leaning toward the 5660 or the 5658. The 5606 is the stock one and the 5608 is for a na regal I believe. I've been looking all weekend on the board and it is confusing. I will be driving on the street and going to the track. I don't want to lower the car to much. I put the moog cargo on the back and so far I like them. I will be doing upper control arms and lower ball joints on Friday, so I want to do the springs at the same time. From what I've read so far, the 5662's are to stiff and raise the car. I'm working on an 86 t at the moment, so she is low to start:biggrin: I guess I'm looking for input on the advantages and dissadvantages of the different springs for the front. Thanks.