Hi guys, I think I may have a boost leak but I cant find the bugger anywhere. I boost to about 17psi when on WOT but when Im cruising at 60mph off boost and mash the loud pedal it changes down gear and I get 3psi boost If I then let of the throttle and apply again it boosts to 17psi again. It seems that when ever I put a sudden large load (straight into tubbie 2) something gives in, it must happen 50% of the time when I mash the throttle. Iv checked everything I can see and all the hoses are tight, has anyone had/experienced anything like this, what could it be?