[Mike C]

The .050 duration of the cam in my experience is the best tool to use for determining the appropriate cam.

In a mostly stock motor I would try and keep the .050 duration at 212 degrees or less. The exhaust number doesn't matter so much. I am not a split pattern cam guy for SBC, it has good exhaust ports and with 'vette manifolds and 2 1/2" exhaust that most run on the street, it just doesn't need it. Small blocks need intake help.

The old Crane Energizer 266 is one of my favorite cams. It compares to the Comp High Energy 260 at .050 numbers. But the 272 or the Comp 268 are also good torque cams.