Yo .. just been on dyno once again after a few more modifications
netted 176kw@wheels (291hp Crank) on 15psi on an internally stock bluetop 4age engine with unknown km's .. i have done 10000kms on this motor at over 230hp.
also the w55 bellhousing we made is holding at just under 300hp .. so next test is to go 350 and see how she goes