[svandamme]

ok, what cams are you thinking off?

Your cam's define everything, what kind of pistons you can use... what kind of power band, and redline you'll need for the engine...
and what other costs you'll need to make (head work, valve springs)

I'm sure you can get new cams for a 3.2.. not to overly convinced about regrinding (hard welding first) them...

Peter knows more about this, i think he had hardwelded , re-ground cams, the new rockers were pitted in i think under 10 000 km's...