1987 Ford F150, 302 5.0, automatic, 120k miles.
I just relocated the TFI module and had to pull out the distributor to insert the new plugs into the module’s ports. This led me to research total timing. I know how to use the timing light and set it to 12 btdc, but I never really understood total timing. I watched a few videos that mentioned it, but I don’t want to screw anything up.
How I understand it to work:
Unplug the spout, let it get to operating temperature. Then, set it to 8-12 degrees before top dead center. Don’t tighten the distributor lockdown bolt. Then, accelerate to about 2500-3000 rpm and turn the Distributor so it is at 30-36 degrees before TDC. Now, tighten the distributor lockdown bolt.
Again, I’m not sure if I’m correct in this assessment, but I’m not finding exact (and dumbed down) directions anywhere. I would greatly appreciate some pointers on this.