I;m new in the Triump world, but can the TR6 enginge handle unleaded fuel Ron95 or 98? Im looking for a TR6, TR4 is probably not a outcome for me (budget). There is a nice racing green TR6 available,US California car with carburettors(or carburettersCommonwealth style ;)). Does this these engines has less hp then the European cars? Any documetation of this subject (www link, books~to read?) regards Rob