Dont know if you have seen this guys page. ...a picture of the mythical factory supercharged
http://www.robskorner.org/faqs/othermotors/othermotors.html



"In 1987 Mitsubishi went a step further with the new 6G7x motor family and introduced a V6 engine varient of the 6G71 in a supercharged flavor. This motor found it's way into the Debonair V."


Also some words about LPG that were interesting

1989 5 door montero 3.0 auto
stock original Japanese
about 200k miles