ls2 cam
http://www.carcraft.com/techarticles...st_comparison/
The LS2 camshaft gave up 18 lb-ft at 2500 vs. the LM7, but gained 48 hp and 78 hp at 5500 rpm and 6200 rpm respectively.
My only caution would be to really see the gains from the LS2 camshaft, you probably also need an intake swap and some exhaust work.





