cam regrind?

[cobaltssoverbooster]

i got a 08 lnf cobalt and i was wondering if anyone knows if cam regrinding would make any gains? ive done it to a few porsche's i have worked on and they net gain well but they also have not had turbos. I have reground those cams up to .040 - .060, will regrinding screw the flow on turbo motor? anyone with a lnf running a reground cam?

[shabby]

If our cams are hardened shaving off that much would weaken the cam, i've seen some nitride hardened cams start to crack after being reground.

[cobaltssoverbooster]

hmm i would def be affraid to hurt them i am really more on the side of .040 keep it small change, ill have to check with gm to see if they are hardened so i can avoid this cracking.