Vapouriser gasket kit

Hi we are looking to buy our first landy and we are being told the car needs a Vapouriser gasket kit, can anybody give us a clue what it is and how much it would cost to fit, goes on a 4.0ltr petrol with lpg conversion.
can any one recomend a good dealer who may be able to help kind regards angela.

this is an lpg part, not a land rover part. might be worth trying an lpg forum, such as:

LPG Discussion Forum • Index page

good luck.