The cam I installed in the LS1 when I had it netted me over 350 ft/pounds from 2700+. Also gained 41 RWHP at a higher RPM.
I got both. Here is the chart before and after the cam. Nothing else but valvetrain components installed here. Springs, pushrods, and 226/234 554/575 112.
The dyno operator was asked to start at different RPM's for these runs, but they are still matched up and on the same chart.
Before cam = Red
After cam = Blue
Needless to say...I didn't have to worry about many cars from a light or on the highway.