My 74 chevy pickup sat over the winter and now it won't start. I was running just fine before I let it sit. It turns over but won't start. If I use starter fluid, it will start but won't stay running. I don't smell gas in the carb either. I'm thinking it's the fuel pump or the filter. Problem is I don't know where there fuel filter is. I need help

Fuel filter is located where the fuel line goes into the carburetor. Fuel pumps are easy to replace on those vintage trucks.