1988 Chevy Silverado turns over and won't start

Engine Mechanical problem
1988 Chevy Silverado V8 Four Wheel Drive Automatic

I'm having a problem starting my truck. It turns over but won't start.I pulled the air cleaner and turned the key and it doesn't look like gas is getting through. I took the line off the filter on both ends and gas was going through the filter. I shot it with starting fluid and still nothing. I also checked all fuses and they're good. HELP!