-1* of camber is fairly aggressive for the street, especially if the radials you're talking about are the BFG T/A's that most folks run.
For a street car with 15's and BFG's I'd set up more like -.5* camber. -1* camber is pretty much the most you can run without seeing camber wear on the tires. It's what I run, but I also have 18" rims and more modern tire compounds and design.
