440 in 72 Dart Swinger?

MOPARMAGA said
I would build the 340, I'm building a 471 for my dart but it was a slant 6 **** box (no offense rusty lol).
If I had a 340 dart I'd definitely build another small block & put the 340 on a stand

You made the right choice, once you get behind the wheel with that 471, the only place you will go is up in cubes.
You will be hooked.