Engine modification...that was carried out in Brazil during 1970s

[marioo]

Hello everyone...:welcome

1. Changes to cylinder walls, cylinder heads, valves and valve seats
   
2. Changes to pistons, piston rings, intake manifolds and carburettors
   
3. Nickel plating of steel fuel lines and fuel tanks to prevent ethanol E20 corrosion
   
4. Higher fuel flowrate injectors to compensate for oxygenate qualities of ethano