Well, I had a look at the Nostalgic Hero/ Tomei racer in Terrys website & noticed a couple of interesting things.
This 1200 engine uses the Tomei alloy oil pan [naturally] I noticed that it is highly polished, something that I was strongly advised not to do to mine. Presumeably Tomei never had a problem.

The 1300 refered to on the rocker cover tells me that this engine has the Tomei 76.76mm forged pistons. These came with the 17.5mm pins & they are in all probability attached to the titanium rods that were made for these engines.
This bore size gives a displacement of 1296cc which fits just nicely inside the 1300 cc capacity limit. Quite obviously they knew just how thick those cylinder walls were right from day one.
This engine just drips with all the best goodies that were made for them.
Now how would this go with a slightly more streetable cam, in a streetable car. [Paradise to Perth, Cannonball anyone?]

EDIT After studying the text, it becomes apparent that this engine has a bore of 76.85mm for a displacement of 1298cc. That's shaving it close.