The fuse block is a piggy back system so to speak. Mine is just like the one ryan b posted give or take a detail.
You will have the wiring harness its self, off the harness will have your basic readings, sensors, injectors, maf, power wire, grounds. The harness then splits into 3 basic parts.
1. the 2 plugs into the ecm/computer
2. your basic 4 wire hook up and small branched off fuse block and relay or relays
those four wires consist of
-4cy tach,
-fuel pump,
-ign on, and
-12 v constant
basic fuses for the ecm, wires, fuel pump etc
and then the relay for the fuel pump and if included the ign and fan,
3. your data/prom plug in and check engine light.
my truck stock I run 87 in it, the motor from it should be no different until you start getting aggressive with the timing, cam, heads etc
your trucks harness and ign key will still operate just as it would before. This harness is intended to be for the engine operation itself.
for the sensors you have options, you can re-tap holes to standard thread, or auto meter sells adapters to thread your stock or aftermarket sending unit into the holes. You can run the stock mech fan, or if you go electric there are controllers like the spall or other ones that can operate in a array of functions such as 1 speed, 2 speed, or even a spool up. Wiring the fan is very important as they have considerable amp draw when you fire em up. The ford taurus fan has been widely used and the internet is stuffed full of information in them.
