Especially the ones for the manifold nuts and the pan bolts.I just use the hand crank-lug wrench. Brattons says 50-55 ft lbs. About the only thing that I use the torque wrench for on my model A's is the head nuts and bearing caps with caution. You've got to be carefull and just use common sense. I've found a lot of advertised torque settings to be way too high.