LPG Conversion for NM

[treka]

Hello All,
Recently bought my first Pajero (NM 3.5 petrol) and am considering fitting an LPG kit. Which brand is recommended?
I have two local mechanics claiming their system is better than the other.
I have also heard that fitting LPG to the 3.5ltr causes it to back-fire, leading to damage to the air box.
This is probably an old topic, but can someone steer this newby in the right direction.
Thanks.

[6G74]

General concensuis seems to be anything other then an injected kit and your waisting your time, names backfire issues. Theres already a couple of threads on it on the forum, do a search, have a read, but theres plenty on the net bout it in general.