Anyone got any good links/guides ?

I found this one so far :

http://forums.turbosport.co.uk/bbs/showflat.php?Cat=&Number=135144&page=5&view=collapsed&sb=5&o=&fpart=1

Looking for more detailed how to and what to be careful of stuff really.

Sylva give it a quick mention on their site in conjunction with the CVH. Still worth a look though.

http://www.sylva.co.uk/cvh.html

Try this

Thanks guys ! excellent !