Hey Doug,
It was good to meet you when you were back east. I am also glad that you got to British Car Day. That show has been going since about 1978, survived a major change of venue, and is finally rebounding. Congrats on getting the Cortina done. I usually change the oil after the first 500 miles or so, and retorque the head, adjust valves and so forth. I find that a close inspection like that gives you a chance to nip any problems in the bud. Shocking eh? two Ford threads in a row...
Happy Motoring.
Jesse