I've done a FI conversion to a non-FI older truck. I think FI does put the truck in a unique category. For starters, you will probably need to address:
1. Brake light switch to cut out trans lock up
2. Relay to act in ignition on postion for computer and to run fuel pump.
3. Some sort of transition sensors for oil pressure and water temp. reading, since these are electronic and run off computer sensors(or just add new gauges to the truck)
4. Probably use the original fuel line for the FI return line and then you need to add a new feed fuel line.
5. Bigger radiator, probably with electric fan run off computer sensor on engine.
6. Trans has an electronic speed sensor to the speedo- need something to mechanically run your speedo, or get a new electronic speedo.
7. Accelerator linkage to transition from mechanical steel lever and rod linkage to mechanical cable linkage.
8. A place to put the ECM - and will the original harness be long enough ?
9. Assuming the original exhaust manifolds won't fit, Headers which won't interfere with knock sensor and which will have a bung for the o2 sensor.
10. Generator to alternator rewire
11. Custom exhaust pipes
12. Air filter, if original won't fit.
