Ok I checked my ramvalve today . Hope this is understandable .
I took off the ramstack to check the valve or what appears to be a flat piece of metal and checked it could be turned fully open by hand , it could with no tight spots . The black plastiv thingy attatched to a spring which turns the valve can be pushed by hand fully to the stop . When it is cutting in and out at 3400 the spring is fully open to the stop,sio I assume the valves would be fully open .
I noticed with my ears today but this could be normal , the black thing thats goes across the top of the inlet manifold with the pipes in sounds like its sucking air for england .
Asked my mate if he had this problem afore I had it off him he said no . The cambelt was changed just before I got it so dunno if their has been an assembly problem .
:-/ what to do next methinks at minimal cost .