Voltage Drops

[JerrySab]

Hey gang,
Doing some KOEO tests across wiring, wondering what numbers I should be seeing, particularly at ignition coil. New(ish) battery shows 12.55v at posts; KOEO at ignition, IAC shows 12v. Ignition coil shows 11.51v, which I would guess is no bueno. Should I expect to see a drop there? or is there something lurking in the wiring?

 

[franklin2]

Yes you can see a voltage drop in the wiring. Ford skimped on the wiring sizes, they are barely big enough to do the job. 11.5v should be enough. It might come up if the engine is running, the alternator is usually around 14.5v when it's turning.