I was recently charged 11 (ELEVEN) hours of labor for changing the exhaust manifold gasket on my 87 Volvo 740 Turbo. They told me 3 studs broke, and that this is the kind of job that you don't want to rush. With 192,000 miles under my car's belt, I feel I was robbed. The damage is done (i.e., I paid because I needed my car), but what do you think about the 11 hours of labor for this job? Thanks. Best.