Cheers man, did a good wee bit on this tonight. Got the fuel pressure sorted. New issues though! Running extremely rich. When throttle is opened fully a huge cloud of black smoke comes out the exhaust, the car dies and the engine management light flashes.
The PAS pump won't stop squealing and isn't working (could this be down to the anodized pulleys?)
Changed back to 4e-fe injectors to see if that helped, but didn't.