69 Dart 340 Info Needed

it all depends on what you are looking for just a mild 340 is more than enough for a dart and you can always go up from mild the 340 will make for better handling easier steering especially in the tight corners easier stopping etc etc. a healthy 340 can put out a lot of power and really be an all around better street/strip car in most respects but a 440 is just bad *** in all reality overkill for an a body but cool as hell like i said though it will be very nose heavy and require a lot of upgrades suspension brakes cooling system different trans, probably driveshaft and quite a few other things i know im forgetting but a healthy big block in an a body there is nothing cooler in my opinion but that is just me most guys like small blocks here just cause its a little simpler install in our cars and more than enough power for them as well so its all up to you and what you really want good luck Justin