I have a 77 roundnose that was originally a 998. A previous owner has dropped a 1275cc engine in it when the 998 expired, but could not tell me what it was originally out of, so I am not certain what it was originally set up for.
The engine seems to have a lot of poke, but it has a couple of tuning issues I would like to address (timing for one, carb for another), so I figured finding out WHAT it was would be a good start, as I am aware that some engines have different timing to other 1275s.
The engine number starts 12H702E and I have read on the Mini Mania forums that the 'E' indicates she was a factory rebuild, but I cannot find reference to the 702 suffix. The closest appears to be a 706 suffix that went in the ADO16 1300GT (found on yet another forum), but that means absolutely nothing really.
Any ideas on how I can identify this beasty further would be greatly appreciated