408 Stroker in a Dart

I am thinking about pulling my 340 out of my car and buying a 408 stroker for it. Looking at a drop in ready 465 HP / 494 FT LBS engine. I am curious from those who have similar engines how the car runs in comparison to what you removed? I would also want to dress it out to look like original engine with stock manifolds ( maybe). Cooling or drivability problems? Honestly overall thoughts. Thanks!!!!