wondering if someone can help with an issue i've got. cars not boosting right at all, won't hit limiter whistle driving and struggles to pull. goes into limp mode when i hit 60-70 but goes away when i turn car off and on, got all the boost pipes checked and welded and put back together and a new front mount intercooler. i had the water issue with the car since i've had it so got a pd150 engine dropped in it and hoped that would eliminate both problems, fixed the water issue as it was most likely the head. but got it back and it's still not boosting right and judders when i put the foot down and still going into limp mode. trying to find an n75 valve and the hoses for sale as the only thing that got changed what the engine block and head nothing else. what's people's verdict? and does anyone have n75 valve and hoses for sale? cheers boys x