1995 Dodge Ram Engine Runs terrible cold, fine warm.

Engine Performance problem
1995 Dodge Ram V8 Four Wheel Drive Automatic 5.9 miles

95 Dodge Ram 2500 5.9L Gas 4x4.

Hello,

Problem is, when my motor is cold, it runs bad, backfiring (sounds like a popcorn machine). Once the computer hits 180 or so, the problem just seems to go away.

Problem is, when you hit the gas while it's doing this, it just bogs out...sometimes stalling. Also causing erratic idle issues.

Truck has new timing chain, alternator, all 16 valves replaced, and a new crank sensor.

Thanks for the help.