73’ 318 dies under accel with new intake & carb

My truck used to do this when it was cold, and the reason for that was vacuum leaks on the intake manifold and carburetor gasket. Another possibility could be that maybe the accelerator pump is giving it too much gas on initial on-throttle and flooding? need to be more specific on the type of bog you think it is. leans out too much? or floods and bogs until it clears itself up? just a guess.