Sorry mate, been a bit hectic,
If your running a td04 trubo it won't hit much past 270 on a good day, so td05 or equivalent vf series turbo, cosworth panel filters are pretty good as non oiled so won't mess up the maf, check what colour your injectors are if they are grey you may want to go up to a 440cc injector which is yellow in colour if I'm right, if they are yellow or blue in colour you'll be fine