Crazy cage,

There is something challenging and wonderful whan an old CVH is made to perform well.
Not everyone has the ability to do it right. 200 HP is relatively straight forward.
250 HP requires more attention to details. 300+ HP requires a knowledgeable builder - and these there are very few.

Why build a zetec? Crap when you compare it to a new Duratec.

This thread is about CVH cam wear, not what engine is "better".