i am currently sourcing parts for my mk6 4x4 cosworth fiesta and need to know what bits to source as the base of my engine build, will speak to tommy at fms but hes not about at the mo so thought id ask here,

power aim will be 450 - 500bhp approx

obviously its going to be 4wd but what parts are the better to use???

2wd head or 4wd head

ideally a 200 block

2wd or 4wd zorst manifolds

anything else different?

thanks
marc