Politecnic is not the old company involved in racing murena.
They don't have a nice reputation anymore
As for the camshaft, they are just a reseller of a local company who will reprofile an old worn camshaft.
This mean a big limitation in the maximum lift and very limited possibility to modify the phase.
Machining like this
As you can see they had to go deep to manage the lift.
This with the old material well known to worn easely
CatCams is machining their profiles from bare steel. They can produce the profile you want.
They are specialised in camshaft.
They don't only offer camshaft byt cam followers, springs, retainers. For other engine, specialy build milimetric pulleys ...
Ask the Simca rallye community and you'll see that CatCams knows very well our engines.
I still need to close a Simca 1200 engine blue printed and equiped with a 6300111 profile. I can insure you that the quality is totaly different.