Vy/vz calais supercharged on lpg?

[Zedlen]

Hey there folks, just want to know the facts, not really opinions on makin a supercharged v6 vy/vz calais DUal Fuel?
I know many people would say it cannot be done, or should not be done.... but is it actually problematic? and why so?

[227shanno]

im guessing youre talking about the new gas direct injection set ups?

[Zedlen]

well im really just trying to find out wat would be best? is direct injection more expensive then regular?