I had the main fuel line disconnected (electric pump) and failed to re-connect it to the carburetor. Got in the car and turned on the pump and let it run long enough to fill up the filter, lines and float bowls (I thought) and tried to start it.... When it backfired, it ignited all that gas that had been pumped out the end of that unconnected line... I didn't have the presence of mind to tuen off the pump... so it continued to burn, for like 5 minutes until I realized that the pump was still on...
Couldn't see the end of the unconnected line for the flames...
