When driving my 1991 C 2500 5.7L pickup and she just stopped running. So I pulled the air cleaner cranked the engine and there was gas spraying so I pulled the #1 plug and there was spark, so then I pulled the distributer cap and it was badly corroded so I changed the plugs, wires cap and rotor, when I pulled the old rotor out it was broken and the shaft was rusty, I sprayed w-d 40 on the shaft put it all back together and she still won’t start. So I sprayed starter fluid in the carb and still nothing. What should I do next?