8.8 CR, 1971 El Camino stock cam, large chamber heads (487 castings with 1.94 intake valves), RPM Air Gap, Edel 1806 carb, running flat top pistons with 4 valve reliefs and steel shim head gaskets, 2000 stall converter. This cam leans toward low end torque.
I originally had 3.36 gears, but when I rebuilt the car I put the current axle in. Now I wonder if I should have stayed with the 3.36. With my current tires the engine turns 2600 rpm at 60 mph. On long trips this thing really needs an overdrive.
I run a 4-row copper/brass radiator with an electric fan on a thermostat, 195 stat. Have never had any issues with cooling. Engine runs consistently at 205 degrees on the highway in the summer.