as karlos said i'd by some nice rods and pistons for a zetec and build a proper zt as you'll only kick yourelf when we finally meet one day and crazycage tells you how much you could of built a monster like his for probably 500 more than your cvh will cost unless you buy a nice ported head for it then the price will be similar and you'll have 230 from the cvh or 350 from the zetec