Originally Posted by Rick
Complete garbage being posted. My NMS head flows significantly more than a std Zetec head. It's not just about airflow figures, it's about to do with combustion chamber design, swirl, squish... The Zetec head is not designed for performance. Its very costly to have it ported properly. As a 16v engine, it's really pretty lame.
If the CVH head you have is done properly, then it will do over 350hp no bother.
combustion design....?????
are u comparing a pentroof design with a hemi??? u r joking right?
squish on CVH? only on the heart shaped cc of head's (and its not that good)
can u compare the very little swirl from the CVH with the tumble swirl of ANY pentroof 4v design....
sorry mate, u re so wrong!!