Hello all - this is my first post here, so here it goes. An earlier post rather thoroughly discussed ditching the Lucas efi system and replacing it with a carb. Towards the end of the post, it was suggested that maybe pulling the Lucas efi and replacing the system with a throttle body fuel injection system (from either affordable, Howell, etc.)would be the way to go. I had actually been considering the same. My current system in my 1990 3.9L is dying a slow death. Every few months I am chasing down a short to ground or a dead sensor. I completely agree that the Lucas system is simple enough, and when working properly, is much better than the best carb setup I have ever had. Mine is just no longer reliable. So, I completely understand the desire to go carb. I briefly considerd this option, and frankly admire anyone up to the challenge. However, I think the TBI system may be the best of both worlds - simplicity, reliability and new. So, basically I am seriously considering a TBI system, Davis Ignition system and a painless wiring 18 circuit rewire. Since all of the dash indicators are sensors, the speedometer is mechanical, I am thinking that this is doable and would be realitively achievable. I suppose the tach might not work. When completed, thetruck should be simpler, and a bit more reliable for the foreseeable future. Id like to know your thoughts and whether you forsee any difficulties, problems or complications that i am just not seeing. Thanks. Discuss.