Skunk2 makes a good camber kit for the front. Some will say Ingalls, but I use them and I don't like the way they are designed. Ingalls does make a great rear kit though.

Anyhow, have you checked your tire pressure? Maybe they have too much air in them... it's a long shot, but I'm just throwing out ideas.

Kuhmo makes a good tire. I don't see 195/55's being a problem on those rims. That means the sidewall is ~107 mm / ~4.2 in.