New guy with some basic Dart questions!

Awesome guys! Thanks! Looks like the 340 might be the better option. I plan to do things 'right' from the beginning having a motor that is a pain to work on is something I want to avoid. As long as I can make good power with the 340 and get it down the strip between 11 and 12 I'll be happy. I've done a bit of reading a people love all of those engines but if the 340 fits right in the Dart that will most likely be what I will go with.

Any Advantages/disadvantages to any of the specific years?