Starting Truck

[colyank]

Just had a question about starting my 72 Chevy pickup. I believe the truck is not getting any gas, because I have an in line filter and no gas comes squirting out when I disconnect the fuel line from the carb while I’m cranking on it. The fuel pump I doubt has been replaced and it is not pumping gas to the carb. Also I tried to prime the fuel line with gas going through the pump all the way back to the tank, and also the carb but nothing happened. I tried dumping gas right into the carb and all I got was a flame. Could the pump be dry or needed to be replaced? And is something like ether that I should be using to start it?

Thanks