ok i have just taken a look.
when using a 2wd throttle body the lug of the throttle pot touches the casting so i relieved both lightly with a file...
also the std breather system 'one way valve' cannot be fitted on the end of the plenum cover so also needs a boss put in...
fuel rail fittings are same as 4x4 sapphire but it looks as if a 2wd rail will fit if the extra lug provided is driled/tapped in the correct position.

anyone got any pics of their modded plenum covers?