Complex sentence: For the game, Montana hit 34 of 54 pass attempts for 393 yards and 3 touchdowns and the Chiefs, now 4--2, had now thrust themselves back into the playoff hunt.
Split into simpler sentences: For the game, Montana hit 34 of 54 pass attempts for 393 yards and 3 touchdowns. The Chiefs improved their record to 4--2 with the win and thrust themselves back into the playoff hunt.