You are on the track talk forum, so what do you mean by "correct" camber at the front ? Go back to the stock specifications with a heavy lowering ? If this is the case, I think that even with a heavy lowering you can go back to -1° (or even less) without camber kit. -1°, even if it is a little more negative camber than stock, won't affect tire life.
If you want more negative camber (because you track your car with r-compound tires or slicks), go with the CT-Engineering camber bushings.