1998 Chevrolet K1500 Silverado 8 Cyl 5.70L
On the fuel system on 98 chevy is it possible for a vapor lock that the fuel doesn't reach the fuel injection system.
Engine rotates ignition is firing injectors are pulsating as required. Fuel pressure is as required 10 gallons fresh fuel in the tank engine will not start.
Spray the starting fluid in the throttle body and see if the engine will start.