why does the truck backfire thru the carb

What is your question?

how do i fix it the truck will try to turn over i just replaced the fuel pump then it started that because before it wasn’t getting fuel and now it’s doing the back firing thing

What makes this problem better or worse?

i don’t know it just started

How long has your 1996 Chevrolet C1500 had this problem?

i left for boot camp three months after and it started then and it’s just been sitting