Search for Marelli, then start crying quietly to yourself as you realise all the posts don't tell you a definitive answer.
John Forcier (Fishcop) recently had a 72/3T or 2.7 CIS dizzy (I think - #0-231-184-001) machined down slightly so it fits his '69 Marelli "hole". He is probably the best guy to ask. I think the advance curve is ok (I have been told it is). I don't know if the 71T has the right or wrong size hole already.
I am fixing mine by replacing the whole engine
(edit) Or you can just buy the Bosch which fits. B.O.H.I.C.A. for a new one (and rarely available second hand).
Cam