Hi there, I've got Qa1 coilover kit but don't remember the spring rate. The roads in Russia, Moscow are not so good as in the US. When we installed them the car became lower, but that doesn't matter. The problem was in the shock mount that has been torned out after getting in a big pothole on the road at the speed aprox 55miles. What kind of springs can you recommend? Need something like stock, but a little bit firmer. Qa1 of course, cause the shocks are in great condition. And besides, the spring with 275rate is softer then 315, or firmer? Thanks. P. S. Camaro and Firebirds fly in Moscow too not only in USA. Sorry for my English, didn't practice for a long time.