also we have some good news on the engine front,
no bent valves at all, was just a lash shim that somehow made its way off the end of the valve and got jammed on a angle holding the valve open.
together with my head and cams guy we have come to the conclusion of the valve being blow back open not in time with the cams due to excessive pressure between the valve and the turbo, as the other option which is valve bounce is highly unlikely due to only being revved to 7000 rpm.
as for the excessive pressure, im putting it down to the fact that in the past i know on full boost just as the car hit the revv limiter the car has a tendency to backfire out of the screamer pipe or in some cases blowing flames out of the full length exhaust, due to the extremely rich fuel mixture
so this may be a happening on the dyno as the fuel mixture is still way off what it should be.
so as of now the current fix is having all the lash adjusters loctited down. if this proves not to be successful a set of uprated exhaust valve springs may be needed.