I'm starting to feel quite relaxed again, so thanks to everybody for that
I'll ask him about the valves next time I speak to him
So, we'll run it as is and see what the outcomes is
I've managed to find a graph of another Triumph owners engine which has been worked on by the chap that's done my head
The fine lines show his engine with someone else's head
The bold line shows the engine with the same head as mine (allegedly)
Everything else remained unchanged
Seems a big difference for just a head swap?