this question has been asked loads of times you will never get a right or wrong answer, to get a zvh working right takes a fooking lot of money,i am currently running a quite a big spec zvh, but next time i will just go 16v zetec, out of the two keep to the cvh where probably be cheaper.only reason i went zvh was i already spent loads of money on my 1.9cvh and i could just transfer all the parts over plus i split the block so i lost Confidence in the cvh , many people here will recommend the cvh , u cant scoff at the times which are being Achieved at the moment which are really impressive