2000 Chevy Silverado starting

2000 Chevy Silverado Two Wheel Drive Manual

the first time I start my truck for the day you can hear the starter go but the truck will start you can hear it try to after awhile but the battery will go dead before it will start. You can get it to start if you spray some starting fluid into the carburetor it will start. But once it has been started once and run for a few minutes it has no problem starting for the rest of the day

we replaced the regular maintence (spark plugs wires ect.), Starter, fuel pump