[Colin’s 65’ Mustang Coupe]

Hey Everybody, last night when I went to turn the key on my mustang all lights turned on (gauge cluster) for a split second and than everything in the car (all the lights and power) turned off and I can’t get anything to turn on. I replaced the battery, solenoid, ignition switch, and checked all fuses.
In my car (65’ Mustang) I have a stock 5.0 1990 302 motor with stock efi harness.

please let me know what you might think it is. Thank you!

 

[DonP]

I'd start by checking your ground connections.