hye i had a dude tell me that ya cant get dual fuel for ba and bf surely that cant be true?

from factory no you can't
but there are aftermarket fitments.

^^^WHS
nothing from factory for dual fuel, one or the other.
plenty of aftermarket stuff, some even give an engine warranty as the ford one is void with conversion.

Or just go EGAS from factory.
But from what has developed over the past 6 months or so ... it'd be best to go with an SVI injected LPG system for now (seeing as liquid injected LPG is not available yet).

It allows to keep traction control if needed ... allows better starting ... smoother running ... more power and better economy compared to the older generation carby-style LPG system.

It costs more ... but in the long run I think it's worth the extra money got the Sequential Vapour Injection systems.

Victorian AutoGas and Parnell Gas Systems off the SVI systems that I know of at the moment.