is it possible to fit ford box type 9 to fiat twin cam without to much cost?
there is an adapter plate to fit a type 9 gearbox to a lada bellhousing, and the lada bellhousing will bolt onto the fiat twin cam.
you just need to find an adapter, these were used in riva rally cars.
Paul
Guy Croft used to do adapters. They are quite simple. Use the Fiat bellhousing.
Rescued attachment gbox adapter_WEB.jpg