I have an 85 f150 with a 300 slightly modified, which I just did a duraspark II conversion on I ordered all new parts, but I bought a module off rock auto and from what I am reading now I think I jumped the gun. The gel lining is black not blue. Will this module work? Also I have a wiring diagram I found online and am planning to get a plymouth resistor(msd blaster 2 coil), plugs and some wires to make the wiring harness today. What gauge wire should I need?

 

14 gauge should be plenty. The color you should be looking for is the plastic around the wires where they come out.

 

Ok, then I guesss it is the proper module
Thanks

 

I resume you are going from EEC to DSII

Shouldn't that 85 already have the resistance wire in the harness coming from the ignition switch ?





It should be just like the older trucks.

 

Alright, those diagrams helped alot, I have all the wiring complete besides wiring to the ignition switch and the positive on the coil, I can't figue out which wiring goes where. I figure that on of them should only have a voltage reading when it is on start and the other should have one on start and run, does this make sense?

 

It appears the Test illustration never made the post above.

 

Use your old coil wire. I think it was red/green. The red power wire to the module can go to the fuse box, and the white wire to the module can go to the red/blue on the starter solenoid.

 

I just finished doing this, but how do I wire the red one to the fuse box, should I loop it back on itself? I dont understand.
Thanks,
Sean

 

Go to the store and get a fuse tap. It wraps around the fuse, and then you plug the fuse back in. Then you are left with a tab sticking out that you can slide a connector onto.