Sorry not a bumpside, but it is a 58 F100

[ns3racing]

Wiring question. Engine bay harness. 1958 F100 with a 292 V8. 4 leads grouped together at the firewall almost centered behind the engine, 1 black(maybe brown) to the coil, red to the coil as well, another red wire to a sensor on the manifold, yellow(maybe white)...yellow wire is hot when the ignition is on, not sure where it is to go. Thank you for any help.