Took a closer look at the Camaro w/heavy duty cooling schematic and the radiator fan(s) has a 20A fuse. But my schematic only shows a single fan and the wire (from the fuse) to the relay is triggered by a coolant temp switch. This appears to be the relay listed (35A rating).
The main power to the fan through the relay is a hot wire with a 20ga fuseable link. Not finding much info on the rating for a 20ga fusable link. Most of the info on the internet is car stereo stuff and it all over the place.
Steve, is each fan on a 30A fuse or circuit breaker?