vectra c 3.2 v6 gsi

Your best bet is to either fit the cams from a 3.0 - this is quite a common mod so there is a lot of info around on J/G cam swaps or reprofiling yours.

If you get your's reprofiled don't go any more aggressive than 260 degrees of lift and 380 degrees of duration, even these will be slightly lumpy on tickover. Power gain wise I'd expect you'd see around 10bhp on the dyno, not a lot really. :(

What other mods are you thinking of doing? Try a company called Newman for the cam reprofile, they know what they are doing.
 
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