There should be a smaller pulley option for the S/C in the upcoming months (boost goes up from 4-9psi) You need fuel management. The stock injectors for the Zetec are only good up to 175hp. When you buy the Jackson Racing S/C upgrade it does come with a box that is supposed to adjust air fuel and such. Don't go in blind...your car will blow up.

Hector 2003 Rally Red Mitsubishi Evolution VIII 257HP/259TQ 2005 Lapis Blue Mazda 6s RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED 160HP/141TQ