1990 Lumina won't start

I have a 1990 Lumina with about 91,000 miles. We recently put on a new fuel pump, new wires and spark plugs. Test drove it afterwards and when we got back and cut it off, now it won't start back. It sounds as if the fan is kicking in when you turn the ignition. Any ideas on what to check would be greatly appreciated.

so it cranks but no start? r u getting ur basic fuel and fire?