[TR] Post motor rebuild re-torque

[Angelo Graham]

Hello List:
Just wondering about how many miles following a motor rebuild (TR 2-4) 
should re-torquing of head & setting of valve clearances take place? 
Should any other re-torquing be done as well? Manifolds, etc?
What is the correct re-torquing method - back off the nut and re-tighten 
to spec or just tighten to spec?
Should an oil & filter change be done at the same mileage, or would you 
get higher mileage on the original oil?
Thanks for any insights.
Angelo Graham