Wasn't the turbo, was a piece of the manifold i reckon. Its a few years old now so time to go back to a standard one but am fabricating a big adapter so it can be hung under as normal, am going to put pics so other guys can see a way round having to weld to the standard manifold.
The comp test was:
no 1 -152
no 2 -150
no 3 -151
no 4 -147
so well happy with that the motor thats in will have done about 65/70 thousand miles now i reckon( just run in then lol )
Also going to recon the t3 saab 9000 16v turbo unit that was on before the big fooka, as plan to make the adapter bolt on-off.
updates to follow.