Anyone know anything about the late 90's, mines a 97, 460 truck that runs on gas or alt fuel? I have a second brain box and a switch on the dash but none of my local Ford techs know anything about them. Don't know what, if anything, I need to get this running besides a tank. Or if it's worth it.

 

Propane is a conversion, not from Ford.

If you live on a farm with 2000 gal tank it makes sense.

 

I figured it was a conversion but the extra computer is a Ford part with factory numbers. Supposedly they were made for county/city trucks in Colorado. Just can't find much more info than that.