well, thanks for the replies guys!

i made an adaptor today so i could connect my cylinder leakage tester to the outlet boost hose from the turbo...

connected it all up and tested it at 2 bar.. had a 60% loss

the manifold-plenum gasket (or sealer!) had gone on a stretch about 4 inches long




also getting a very small air leak from around the iscv, do these have one seal or two?

mine only has one? it may be leaking because the valve shut ,and when the throttle is open the iscv opens to, so this may stop it leaking?