BTTT for RichM, he will be able to help!

Id say personally, that with a cvh head, the 1.8 zetec bottom end should give ~ 8.3:1, and IMO that should be fine to run as is, upto say 1bar boost.

I know MattSab and Huw (mungus), both ran these at some stage, no idea what they use now! I believe Matt reported he was having det problems at one stage, whether or not this was directly CR related or not i dont know.

Hopefully someone like Rich can offer some advice!.