Hi I have a 1990 Subaru legacy GT, single turbo vf28, 96 STI ra Ecu and I think it has 330cc injectors, and a brand new walbro 400hp fuel pump, 206kw fuel pressure regulator, now it starts cold great, no smoke, it hunts on idle. when i drive it, slowly increase throttle it's fine, but when it hits 5-6psi or higher it starts cutting out, it just doesn't go anywhere like it being driven with the hand brake on lol, under heavy load, same symptoms but worse and it actually feels like it's slowing down and blows smoke, I'm pretty sure it's black but give me an all rounder for blue white and black, ow and it's got a pod filter from original owner. I drove it again today and increased the boost a little but this time it blew out a fair bit of smoke under load so I backed of and tried driving but the second I touched the throttle it felt like it was going to stall, then it did so I started it up, gave it a couple of light revs and was fine just back to same problem on boost. Please help