Delta 88 won't start

I have a 1987 Delta 88 Royale Brougham, 3.8l V6. I am having problems getting it to start. It will turn over, but nothing else except drains the battery. I have air flow, fuel in the fuel rails and spark coming from my plug wires. Is there anything else anyone can suggest I check? I love this car and would hate to seperate with it.