Why Hot Ignition Key??

[40cpe]

Planojc makes good points. If the connections are tight, the heat must be coming from internal contacts. IF the ignition switch is original it is not designed to handle the loads of a street rod's accessories. With the switch getting that hot, it might be about to fail. consider putting everything (especially the AC and electric fans) but the ignition on relays and let the switch trigger the relay instead of carrying the load.