I recently bought a 1973 Ford Bronco. When I picked the truck up it ran fine the whole way home. I parked it and a few hours later went to start it up and it won't turn over. I have had battery checked, starter checked. Replace the ignition coil, and solenoid. Still not getting the engine to turn over. It starts but doesn't fire. I have checked the spark plug wires, its getting a spark so I am guessing maybe it is having issues getting fuel. Is there something I could do to check this? I have read some things about spraying starter fluid into carb? Just not sure what to try next. Would appreciate any help. Thanks