Hi mike
I will start a new thread about this soon, we now know the exact reason for the problem changing the valve stem seals did work but the
oil burn came back around 280 miles later, the heads are off the car and we now know the exact problem, i'm waiting for the report from the head machine shop, but this engine was shipped to me faulty from the factory and there is no way they ran this engine for 20 minutes like the paper shipped with the engine says, i have some video footage aswell but will wait for the report.
cheers chris.