Hey guys. My car is going to mainly be a street car, but it will see the strip a few times a month. If I use eibach pro kit springs on the car, I know the street mode will be enhanced. Will these springs kill any hopes of having good 60ft. times?? How about if used with Billstein shocks? I have airbags for both rear springs. Will I be able to use them with the Eibachs??