There are definitely threads on cams here (looked but couldn't find them straight away - sorry). Cams are a source of frustration on the site. Schneider had a good cam for these engines but IIRC some people have had mixed results with them more recently. You will need to get a stock cam re-profiled. I highly doubt you will find anyone with a stock blank cam for custom grinding. What engine do you have? A trick for making power is finding the same engine generation/designation and swapping the cam from the lower CC engine. E.g. you could take the cam from a G62B (1.8) and use it in a G63B (2.0) The cam in the smaller capacity engine has to be more aggressive to compensate for the decrease in CC's or it would be a slug. This will only work with the same design head - mechanical to mechanical, hydraulic to hydraulic as the parts aren't cross compatible.