Hi drbob, this is not that detailed re Nc regs for the Escort Twincam, and im sure it is info you have already but I will post the link anyway.
It is just the CAMS / Motorsport Aus approved vehicle spec for the Nc Escort TC. (One thing it does confirm is the homologated dry weight is 825kg.) Lists a few basic can do's and cannot do mods. Nothing groundbreaking as I said.
https://www.motorsport.org.au/docs/d...rsn=8b3dadf3_2
FIA Homologation stuff from their 'Historic Database':
https://historicdb.fia.com/car/ford-escort-twin-cam
https://historicdb.fia.com/sites/def...24_group_2.pdf
Edit: Just noticed the FIA stuff is Group 2.Sorry.