Stroker street/ strip guys- I need suspension help!

My 60' times have went to crap. I am still running the stock suspension ( i do have lca's and sub connectors). They actually were not that bad when I first built the car (high 1.60's). Anyway, tonight 1.90 was all it had and I could not even spray off of the line without the rear end breaking loose.
I have little experience with suspension. Basically, what do I need for consistant 1.50's? I have no clue about the adjustable suspension set ups like QA1 but I know i need it. How much would Eibach drag springs help? all input appreciated.
 
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