Both heads are on and the intake assy is installed.
That was a problem, one of the bolts pulled out the threads before it had reached the required torque and then the race was on to get the Helicoil insert installed and the manifold refitted before the sealants went off.
The problem was really due to the manifold bolts all being too short (1") so I replaced all with 1,1/4 NC so that wont be an issue again.
New valve train all the way back to the camshaft.