It's a very early A14 as far as I can tell. Then engine number is A140010xx. Nissan couldn't tell me where it came from - they say their records only went back to the Sunny. 1979.

I've got a twin weber side draft manifold...just don't have the set of weber 40 dcoe's....one day.

I'll try getting the heat sink of the exhaust manifold and bolting it onto the intake - or otherwise if anyone has a manifold that will take the stock carby and the oval A14 intake ports...looks like I'm keen.