Assuming it's got a standard ford coilpack, this will have 3 terminals, the centre terminal will be POSITIVE + 12 VOLTS, , the terminal to the left of this goes to the coil to the left of the pack,(the coilpack is two coils moulded together), the terminal to the right goes to the coil to the right.
The coilpack uses what is called wasted spark, and the coilpack is 2 coils in one pack, one side of which feeds cylinder 1 and 4, the other side will feed cylinders 2 and 3.
The terminals either side of the centre positive one, are the negative pulses that come from the ecu, so a spark occurs in cylinder 1 and 4 at the same time, and cylinders 2 and 3 at the same time.
A lot easier to explain with a diagram, just pm me your email and I'll draw a sketch for you, it's very easy to do.
My only concern would be over heating the drivers in the ecu however, as it will now have nearly double the load.
4 seperate coils will give no advantage whatsoever at the rpm reached by your engine though, so is a bit of a waste of money and time, it tends only to show a microscopically small benefit at mega high rpms, like bike engines go to.
tabetha