I haven't heard anything about a "new" cam but they have been pushing the LS7 cam recently. They even have a CNC Heads Kit with the LS7 cam. Supposedly good for 40HP. You could do much better with many of the vendors in no particular order PCM, Jannety, Lingenfelter, etc, etc, etc.
I debate how much I expect to get from a cam or even better heads/cam swap... I believe 50hp is minimum for a cam and 70 for cam/heads... this is my opinion though.
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