You should attempt to diagnose the problem vs changing parts. Disconnect fuel line at the carb, run a hose to a jar and crank the motor. Should see plenty of gas. If that's ok it time to go through a tune up.

Get a shop manual and go through the tune up proceedures. You'll be money ahead and really find the problem. Just swapping out parts we called "Easter Egging" in the Navy.


It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed