Thanks Brent. I'm pretty sure I did and everything lines up as should (rail bolts and tensioner springs). But you know how self-doubt creeps in
.
I'm going to use a borescope to see if I can see anything untoward in there.
I'm also trying to loosely fit the camshaft sprocket before I've fully tightened the cylinder head. I assume that when everything is tightened up I will gain a little, but I just can't see it being enough.
Thanks again for responding.
Ian